Abstract:
:One of the hallmarks of cancer is limitless proliferative capacity, which is tightly associated with the ability to maintain telomeres. Over the last decade, the telomere biology of pediatric cancers has begun to be elucidated. Most pediatric leukemias and embryonal solid tumors activate the enzyme telomerase, a specialized reverse transcriptase that adds nucleotide repeats to telomeres. In general, high levels of tumor telomerase expression are associated with unfavorable outcome, although results vary according to tumor type. Some pediatric tumors, including osteosarcoma and glioblastoma multiforme, lack telomerase activity and maintain telomeres via a recombination-based mechanism called ALT (alternative lengthening of telomeres). Telomerase is a highly attractive therapeutic target for pediatric cancer because the enzyme plays a key role in conferring cellular immortality, is present in most tumors, and is relatively specific for cancer cells. Telomerase inhibitors have been evaluated in preclinical models of adult cancers, but few studies have been conducted on pediatric cancers. Further research is required to define how telomere biology can be used to clinical advantage in malignancies of childhood.
journal_name
Cancer Investjournal_title
Cancer investigationauthors
Tabori U,Dome JSdoi
10.1080/07357900701208683subject
Has Abstractpub_date
2007-04-01 00:00:00pages
197-208issue
3eissn
0735-7907issn
1532-4192pii
779065502journal_volume
25pub_type
杂志文章,评审abstract::Ubiquitin ligase Cullin7 has been has been suggested to act as an oncogene in some tumors; however, the prognostic role of Cullin7 has not been evaluated in cancer patients. In this study, we observed that the expression of Cullin7 mRNA was significantly higher in epithelial ovarian cancer (EOC) compared with normal o...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2015.1114123
更新日期:2016-01-01 00:00:00
abstract::This case control study investigated whether polymorphisms of estrogen metabolizing genes CYP1A1 MspI, CYP17 MspAI, COMT Val(158) Met, and SULT1A1 Arg(213) His have any role in familial breast cancer susceptibility risk. Logistic regression analysis adjusted to age was used to calculate odds ratios (ORs) and 95% confi...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357900902744494
更新日期:2010-03-01 00:00:00
abstract::Neural stem cells (NSC) are capable of differentiating toward neuronal, astrocytic, oligodendrocytic and glial lineages, depending on their spatial location within the central nervous system (CNS). Although, a lot of knowledge has been gained in the understanding of differentiation-specific signaling in hematopoietic ...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1081/cnv-200039679
更新日期:2004-01-01 00:00:00
abstract::We have analyzed allelic loss of the short arm of chromosome 9 in 39 head and neck cancers using 13 polymorphic markers and found two deletions of hot spots at 9p21 and 9p24. Loss of heterozygosity was detected at least at one locus in 28 of 39 cases (71.8%). P16, a well-known tumor suppressor gene, is considered to b...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900802563010
更新日期:2009-07-01 00:00:00
abstract::The complex formed by isopentane, as a model for the isoleucine residue present in the wild-type thymidylate synthase, with 4-mercaptopyridine as a fragment of the thymidylate synthase inhibitor Thymitaq (AG337) is investigated with ab initio quantum chemical calculations at Hartree-Fock and MP2 levels, using the 3-21...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909909021431
更新日期:1999-01-01 00:00:00
abstract::There appears to be exceptional and growing public enthusiasm for botanical, or "herbal", medicines, especially amongst cancer patients. This has recently begun to be matched by increasing scientific attention. Whilst it is known that plant extracts are active against cancer, the standard approach has been to isolate,...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1081/cnv-120005926
更新日期:2002-01-01 00:00:00
abstract::Metronomic chemotherapy refers to the chronic, equally spaced, delivery of low doses of chemotherapeutic drugs, without extended interruptions. Previously, we developed two combined metronomic schemes for the treatment of murine mammary tumors. The aim of this study was to compare their effects on tumor and metastasis...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2013.877480
更新日期:2014-03-01 00:00:00
abstract::Platelet-derived growth factor D (PDGF-D) has been shown to mediate cellular processes of importance in cancer progression. This study aimed to investigate the expression and putative involvement of PDGF-D signaling in colorectal carcinogenesis. PDGF-D was expressed in vascular endothelial cells in tumor and normal ti...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2019.1576191
更新日期:2019-01-01 00:00:00
abstract::Doxorubicin and paclitaxel are highly active agents in the treatment of advanced breast cancer. Although early trials of the combination reported high response rates, an unexpectedly high incidence of congestive heart failure observed on two of the early trials was cause for much concern. More recently, clinical trial...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1081/cnv-100000150
更新日期:2001-01-01 00:00:00
abstract::CXCL12 is an extracellular chemokine binding to cell surface receptor CXCR4. We found that activation of CXCL12/CXCR4 axis stimulated angiogenesis in endothelial cells. Knockdown of CXCR4 in endothelial cells prevented the branch points of angiogenesis. Endothelial cells exposed to CXCL12 presented high level of epide...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2017.1422512
更新日期:2018-01-02 00:00:00
abstract::Fibronectin (Fn) synergizes with macrophages (M phi) in inducing cytostasis and cytotoxicity of neoplastic cells in culture. Since heparin enhances Fn's opsonic activity in many systems, we investigated its effect on Fn-macrophage synergy in cytostasis. MCG-T14 (a spontaneous mouse mammary adenocarcinoma) cells (4 X 1...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357908409040310
更新日期:1984-01-01 00:00:00
abstract::Acute promyelocytic leukemia (APL) is characterized by specific t(15;17), distinct morphologic picture, and clinical coagulopathy that contribute to the morbidity and mortality of the disease. This study aims to investigate the effects of antitelomerase compound BIBR1532 on APL cells (NB4). BIBR 1532 exerts a direct s...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2011.629378
更新日期:2012-01-01 00:00:00
abstract:PURPOSE:The decision concerning adjuvant therapy remains difficult in patients with very early stage ovarian carcinomas [Fédération Internationale de Gynécologie et d' Obstétrique (FIGO) Ia/b]. Therefore, we compared the MIB1-determined tumor growth fraction in archival tumor tissue with tumor recurrence and outcome of...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-120030206
更新日期:2004-01-01 00:00:00
abstract::The standard staging evaluation of prostate cancer includes digital rectal examination, measurement of serum tumor markers, radionuclide bone scan, and abdominal pelvic computed tomography (CT) or nuclear magnetic resonance imaging (MRI). We retrospectively reviewed 300 cases of newly diagnosed, untreated adenocarcino...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909509024892
更新日期:1995-01-01 00:00:00
abstract::Venous thromboembolic disease is a major cause of morbidity in cancer patients. The Perspective database was used to identify patients with solid tumors and a diagnosis of VTE from 2006 to 2012. We examined use of IVC filters, thrombolysis, and thrombectomy. Among 32,545 patients, 23.1% received an IVC filter, 1.9% th...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2016.1221078
更新日期:2016-09-13 00:00:00
abstract::High-dose acetaminophen (HDAC) produces hepatocellular necrosis and cytotoxic changes in other tissues that express mixed-function-oxidase (MFO) activity. N-acetylcysteine (NAC), administered within 8 hr of HDAC exposure, replenishes reduced glutathione and prevents these effects. Numerous cell culture and animal stud...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章
doi:10.3109/07357909609012140
更新日期:1996-01-01 00:00:00
abstract::Multifractionated dosing (MFD) schedules for chemotherapy administration such as weekly or twice weekly administration are intended to maximize dose intensity while minimizing toxicity, but the cumulative drug effect may result in neutropenia necessitating interruption of dose fractions and thereby compromising dose i...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909909032865
更新日期:1999-01-01 00:00:00
abstract::The interaction of 5-fluorouracil and cyclophosphamide in the treatment of L1210 and P388 leukemias was studied using response surface methodology. Single dose treatment of each drug was administered simultaneously or with a 24-hr interval between 5-fluorouracil and cyclophosphamide to the advanced tumors or at variou...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357908709020311
更新日期:1987-01-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to compare the manganese superoxide dismutase (MnSOD) expression in matched tumor and normal tissue. METHODS:One hundred lung cancer specimens and matched normal lung parenchyma from the same patient were evaluated for MnSOD expression. RESULTS:The median normal MnSOD expression...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357900903405918
更新日期:2010-10-01 00:00:00
abstract::An elderly woman with Hodgkin's disease and hepatic involvement but without cholestasis presented with markedly depressed levels of serum esterified cholesterol and high density lipoproteins (HDL). Within five days of her first cycle of chemotherapy her serum HDL-cholesterol rose from 8-10 mg/dl to 88 mg/dl, and level...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357908609017510
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVES:To evaluate the efficacy and toxicity of the combination of vinorelbine and interleukin (IL)-2 in patients with metastatic melanoma as second-line chemotherapy. PATIENTS AND METHODS:Twenty-two patients with histologically confirmed stage IV melanoma previously treated with temozolomide-based chemotherapy--o...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1081/cnv-200039630
更新日期:2004-01-01 00:00:00
abstract::Non-invasive pharmacological management of patients with cancer related pain has resulted in pain control in 90-95% of the patients. Thus, 5-10% of patients still experience inadequate pain control despite aggressive combined pharmacological therapy. Moreover, patients may not tolerate an aggressive program of titrati...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1081/cnv-200027166
更新日期:2004-01-01 00:00:00
abstract::Metastasis is the overwhelming cause of mortality in patients with breast cancer and our understanding of its cellular and molecular determinants is limited. Among cellular determinants, disseminated (DTC) tumor cells undoubtedly are key players in the metastatic cascade. In the past, several models have been construc...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1080/07357900802574496
更新日期:2009-07-01 00:00:00
abstract::UFT is the combination of the fluorouracil (5-FU) prodrug tegafur, and the dihydrophyrimidine dehydrogenase inhibitor uracil. UFT and leucovorin have been used in the oral treatment of a variety of malignancies. Given the radiosensitizing properties of UFT, its combination with radiation therapy is a logical step in t...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1081/cnv-120022382
更新日期:2003-01-01 00:00:00
abstract::The purpose of this study was to investigate whether the intelligence quotient (IQ) in children treated for leukemia decreases in the years following whole brain irradiation. Twenty-seven leukemic children were assessed following a mean time lapse between radiotherapy and IQ measurement of 9 years. The IQ test used wa...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-100104285
更新日期:2001-01-01 00:00:00
abstract::Mice bearing LP07 lung adenocarcinoma present some characteristics similar to those shown in patients with several malignant diseases. LP07 tumor bearers develop paraneoplastic syndromes such as cachexia, leukocytosis, and hypercalcemia, partly due to a systemic inflammatory response. We analyzed some of the mechanism...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900500524322
更新日期:2006-03-01 00:00:00
abstract::Most current classifications of lymphoid neoplasms define the tumors based on the cell of origin, phenotype, genetic abnormalities, and clinical features. Here it is proposed that human lymphocytic tumors can be categorized based on the propensity and capacity of the tumor cells to undergo apoptosis. The first categor...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1081/cnv-120002951
更新日期:2002-01-01 00:00:00
abstract:OBJECTIVES:To investigate the relative risk factor of food items for colorectal cancer in four time periods through a case-control study in a Chinese rural area. METHODS:Colorectal cancer patients diagnosed at a county cancer center, Hebei Province, China, and non-cancer outpatients with similar age, sex, and place of...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-120002145
更新日期:2002-01-01 00:00:00
abstract::A small subset of cells in a patient with leukemia, termed leukemic stem cells (LSCs) have been shown to be responsible for the proliferation of disease. LSCs are thought to derive from normal hematopoietic stem cells, but are phenotypically distinguishable in that they are CD90(-), CD117(-), and CD123(+). Research in...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357907.2012.700986
更新日期:2013-05-01 00:00:00
abstract::Several studies have shown that sera from patients with Hodgkin's disease contain factors capable of inhibiting polymorphonuclear functions, among them chemotaxis. In the present study, we investigated whether these sera, which were able to inhibit PMN chemotaxis in the agarose test, were also able to affect the 3H-NE...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909409024868
更新日期:1994-01-01 00:00:00