Abstract:
:This review focuses on two chemotherapeutic agents belonging to the family of purine analogs, 9-beta-D-arabinosyl-2-fluoroadenine-5'-monophosphate (F-ara-AMP, fludarabine), which is the soluble form of F-ara-A, and 2-chloro-2'-deoxyadenosine (CdA, cladribine). Both compounds display remarkable activity in malignancies arising from the clonal expansion of lymphocytes, and particularly in B-cell chronic lymphocytic leukemia (B-CLL). These analogs are prodrugs that must be converted into their respective nucleotides as an essential requirement for cytotoxicity. Triphosphate analogs inhibit various processes involved in DNA and RNA synthesis. Moreover, the effect of nucleoside analogs in leukemic cells may involve modulation of apoptosis pathways, cell-cycle control, or signal transduction pathways. These findings are of crucial importance because alterations in these pathways may be involved in leukemic cell resistance toward nucleoside analogs and, hence, constitute new molecular targets to sensitize leukemic cells to these drugs.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Van den Neste E,Cardoen S,Offner F,Bontemps Fkeywords:
subject
Has Abstractpub_date
2005-10-01 00:00:00pages
1113-24issue
4eissn
1019-6439issn
1791-2423journal_volume
27pub_type
杂志文章,评审abstract::Targeting protein kinases as a therapeutic approach to treat various diseases, especially cancer is currently a fast growing business. Although many inhibitors are available, exhibiting remarkable potency, the major challenge is their selectivity. Here we show that the protein kinase CK2 inhibitors DMAT, TBB and resor...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo_00000431
更新日期:2009-11-01 00:00:00
abstract::Subsequently to the publication of the above paper, the authors have realized that Figs. 3 and 4 contained errors. Two sets of bands in Figs. 3D and 4B were erroneously placed during the process of figure preparation. In Fig. 3D, the β‑actin bands for the PANC‑1 and CFPAC‑1 cells were presented incorrectly, whereas in...
journal_title:International journal of oncology
pub_type: 杂志文章,已发布勘误
doi:10.3892/ijo.2019.4871
更新日期:2019-11-01 00:00:00
abstract::Gastrointestinal stromal tumors (GISTs), are characterized by mutations of the KIT or platelet-derived growth factor receptor-α gene and the constitutive expression of Kit, which is currently being studied as a potential therapeutic target. In this study, we addressed the question of whether the microRNA (miRNA) 221/2...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2010.857
更新日期:2011-02-01 00:00:00
abstract::Delivery of electric pulses to an established solid tumor augments the permeability of cell membrane and increases the susceptibility of tumors to an anti-cancer agent that is administered in the vicinity of tumors. Forced expression of the wild-type p53 gene in tumor cells that have non-functional p53 gene(s) can als...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.18.4.825
更新日期:2001-04-01 00:00:00
abstract::The expression of proinflammatory cytokines in various malignant neoplasms is widely considered to represent the host immune response to tumor development. The role of interferon (IFN)γ in head and neck squamous cell carcinoma, and its association with endoplasmic reticulum (ER) stress pathways, remains a subject of o...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4590
更新日期:2018-12-01 00:00:00
abstract::We included in a case-control study on brain tumours and mobile and cordless telephones 1,617 patients aged 20-80 years of both sexes diagnosed during January 1, 1997 to June 30, 2000. They were alive at the study time and had histopathology verified brain tumour. One matched control to each case was selected from the...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2003-02-01 00:00:00
abstract::Cell lines established from the TH-MYCN transgenic murine model of neuroblastoma are a valuable preclinical, immunocompetent, syngeneic model of neuroblastoma, for which knowledge of their p53 pathway status is important. In this study, the Trp53 status and functional response to Nutlin-3 and ionising radiation (IR) w...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4261
更新日期:2018-03-01 00:00:00
abstract::Models of animal melanoma are still indispensable tools in oncological research because they can be studied in syngeneic hosts while human melanomas cannot. One such model is a family of melanomas which originated in 1959 from a spontaneous melanotic melanoma of the skin in Syrian hamster, the Bomirski melanomas. Curr...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2.2.221
更新日期:1993-02-01 00:00:00
abstract::Primary liver cancer is globally the sixth most frequent cancer, and the second leading cause of cancer death and its incidence is increasing in many countries, thus, becoming serious threat to human health. Substantial research has focused on the treatment and prevention of liver cancer. However, the underlying molec...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2016.3383
更新日期:2016-04-01 00:00:00
abstract::One hundred five patients with clinical stage T2-T4 transitional cell bladder carcinoma who completed either low-dose (20-26 Gy) or high dose (40-50 Gy) preoperative radiotherapy (RT) followed by cystectomy were reviewed. Five-year actuarial survival was 42%, 52%, and 17% for stages T2, T3, and T4, respectively. Five-...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.1.5.555
更新日期:1992-10-01 00:00:00
abstract::Transcriptional silencing of the DNA repair protein, O6-methylguanine-DNA methyltransferase (MGMT), occurs only in malignant or transformed cell lines, and such MGMT-deficient cells are hypersensitive to chemotherapeutic alkylating agents such as 1, 3-bis (2-chloroethyl)-1-nitrosourea (BCNU) and temozolomide. Previous...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.18.6.1187
更新日期:2001-06-01 00:00:00
abstract::To determine the relation between apoptosis and cytotoxicity the number of apoptotic (AP) cells was measured in MOLT-4 and HL-60 cultures treated with adriamycin, etoposide, cisplatin and 1-B-D-arabinofuranosylcytosine (ara-C) in the dose range inducing 20-95% growth inhibition. DNA degradation in individual AP cells ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.4.2.481
更新日期:1994-02-01 00:00:00
abstract::We established new two protein-free culture subclones from murine well-characterized Ehrlich ascites carcinoma and P815 mastocytoma using intermittent protein-free culture performed previously for a protein-free subclone of fibrosarcoma (Gc-4 PF). The Ehrlich protein-free subclone (Ehrlich PF) grew much more slowly th...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.1.4.481
更新日期:1992-09-01 00:00:00
abstract::Melanoma, the most aggressive human skin tumor, has a very short survival time, and there are currently no effective treatments. Alterations in cell metabolism, such as enhanced aerobic glycolysis, have been identified as hallmarks of cancer cells. In the present study, bioinformatics studies using online databases re...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2020.4964
更新日期:2020-03-01 00:00:00
abstract::We examined the effects of suppressing multidrug resistance-associated protein (MRP) and multidrug resistance 1 (MDR1) gene expression in HCT-8DDP human colon cancer cell lines, which showed both cisplatin and multidrug resistance. Hammerhead ribozymes, designed to cleave MRP mRNA (anti-MRP Rz) and MDR1 mRNA (anti-MDR...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2002-11-01 00:00:00
abstract::Orlistat is an orally administered anti-obesity drug that has shown significant antitumor activity in a variety of tumor cells. To identify the proteins involved in its antitumor activity, we employed a proteomic approach to reveal protein expression changes in the human ovarian can...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1465
更新日期:2012-08-01 00:00:00
abstract::The mutation of isocitrate dehydrogenase (IDH)1 (R132H) and IDH2 (R172K) and the induction of hypoxia in various solid tumors results in alterations in metabolic profiles, including the production of the d‑ or l‑forms of 2‑hydroxyglutarate (2HG) from α‑ketoglutarate in aerobic metabolism in the tricarboxylic acid (TCA...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4649
更新日期:2019-02-01 00:00:00
abstract::Optimal conditions have been defined to grow primary cultures of malignant melanoma suitable for in vitro pharmacological studies. A feasibility of primary cultures was observed in 60% of 62 clinical melanoma lymph node metastases. The neoplastic nature of the cells grown in culture, as assessed by the highly specific...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.1.6.619
更新日期:1992-11-01 00:00:00
abstract::A long-held central dogma of radiation biology has been that the carcinogenic effects of ionizing radiation (IR) are induced by the direct and radiolytic actions of IR on nuclear DNA. Numerous investigations, however, have revealed that several cancer relevant effects of IR can occur in cells that have received only c...
journal_title:International journal of oncology
pub_type: 杂志文章,评审
doi:
更新日期:2002-08-01 00:00:00
abstract::We have previously investigated the possibility of using hypericin as a diagnostic tool for the fluorescence detection of flat bladder carcinoma. In these clinical studies, it was shown that following intravesical application in humans, hypericin becomes selectively localized in transitional papillary carcinoma and ca...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2003-04-01 00:00:00
abstract::In normal human somatic cells, gradual shortening of telomeres may activate the complex cascade of molecular events known as cellular senescence. Experimental evidence from our laboratory suggests that cellular mortality is regulated by two separate mechanisms that we have termed mortality stage 1 (M1) and mortality s...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.3.4.559
更新日期:1993-10-01 00:00:00
abstract::Steroid receptor analysis is the only widely accepted prognostic/predictive marker in breast cancer (BC) treatment. In the present study we evaluated the prognostic role of ER/PgR with p53 and Bcl2, in a series of 277 BC (153 pN1/2, 122 pNO, 2 pNx) with a long-term follow-up (67 months for DFS, 75 months for OS). Our ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.15.6.1137
更新日期:1999-12-01 00:00:00
abstract::The epidermal growth factor (EGFR) pathway is frequently activated in glioblastoma but the clinical efficacy of EGFR inhibitors in malignant glioma has been disappointing. The reasons for the failure of the mechanisms of resistance of these inhibitors are unclear, but may involve factors of the tumor microenvironment ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2016.3498
更新日期:2016-07-01 00:00:00
abstract::This study suggests that speckle-type POZ protein (SPOP) may be a tumor suppressor gene and its prognostic value in human glioma. Real-time quantitative RT-PCR (qRT‑PCR), western blotting, and immunohistochemical staining were used to examine SPOP expression in glioma tissues and normal brain (NB) tissues. The relatio...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2729
更新日期:2015-01-01 00:00:00
abstract::The Drosophila argos protein is a natural ligand antagonist of Drosophila EGF receptor (DER), but does not interact with the human EGF receptor (EGFR). With a view to generating a corresponding EGFR antagonist, we, have designed five chimeric proteins featuring selected characteristic parts of argos within the framewo...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.10.4.677
更新日期:1997-04-01 00:00:00
abstract::A serum-specific protein 'fingerprint' model was established which is capable of evaluating the effect of chemotherapy (gemcitabine) of pancreatic adenocarcinoma. We used SELDI-TOF-MS coupled with CM10 chips and bioinformatics tools to analyze a total of 45 mouse serum samples from three groups: the healthy control gr...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo_00000804
更新日期:2010-12-01 00:00:00
abstract::Induction of differentiation in a variety of model systems is accompanied by cell cycle exit and inhibition of Cdk2 kinase activity. We asked whether inhibition of Cdk2 activity is sufficient to allow differentiation to occur in a non-small cell lung cancer cell line. Treatment of NCI-H358 with flavopiridol, an inhibi...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:1999-07-01 00:00:00
abstract::Peripheral blood mononulear cells (PBMC) derived from 10 asymptomatic human T lymphotropic virus type I (HTLV-I) carriers were cultured for a short term (10-14 days) in the absence of exogenous antigens. In 5 carriers, when compared with 5 HTLV-I non-carriers an apparent increase in the proportion of CD8+ DR+ cells wa...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.5.2.159
更新日期:1994-08-01 00:00:00
abstract::Tissue samples from a malignant melanoma of the anal canal and its local metastasis were short-term cultured and analyzed cytogenetically. Complex chromosome aberrations were found in the primary tumor, yielding the karyotype 49-50,X,-Y,der(1)t(1;13)(q44;q12),+der(2)t(2;8) (q31;q12),der(6)t(5;6)(q13;q21),+del(6)(q12q2...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.6.3.555
更新日期:1995-03-01 00:00:00
abstract::Anisi stellati fructus (ASF), commonly known as star anise, has long been used as a traditional Chinese medicine to treat inflammation, nervousness, insomnia and pain. In recent studies, it has been demonstrated that ASF possesses anti-bacterial, anti-fungal and anti-oxidant activities, as well as exhibits inhibitory ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2606
更新日期:2014-11-01 00:00:00