Tumor-initiating activity of the (+)-(S,S)- and (-)-(R,R)- enantiomers of trans-11,12-dihydroxy-11,12-dihydrodibenzo[a,l]pyrene in mouse skin.

abstract：:The objective of this work was to investigate the expression of glutathione S-transferase placental form (GST-P) in 9,10-dimethyl-1,2-benzanthracene (DMBA)-induced hamster buccal pouch carcinogenesis. Lesions were classified histopathologically into four categories, simple hyperplasia, papillary and nodular (PN) hyper...

journal_title：Cancer letters

authors： Iida K,Yamamoto M,Kato M,Yoshida K,Kurita K,Tatematsu M

更新日期：1999-01-29 00:00:00

abstract：:Telomerase, a critical enzyme responsible for continuous cell growth, is repressed in most somatic cells except proliferating progenitor cells and activated lymphocytes, and activated in approximately 85% of human cancer tissues. Telomerase activity is a useful cancer-cell detecting marker in some types of cancers in ...

journal_title：Cancer letters

authors： Hiyama E,Hiyama K

更新日期：2003-05-15 00:00:00

abstract：:In many parts of the world, green tea and black tea are produced from the plant Camellia sinensis. Tea is one of the most widely consumed beverages, second only to water. It is one of the safest beverages since it is made with boiling, sterile water and has been popular for over 4000 years. Dogma has it that people kn...

journal_title：Cancer letters

authors： Weisburger JH

更新日期：1997-03-19 00:00:00

abstract：:Oxidative phosphorylation (OXPHOS) in cancer has attracted a considerable attention in the past decades, and accumulated evidence has suggested that it plays an important role in tumor proliferation, metastasis and drug resistance. However, the mechanisms involved in these effects are still ambiguous to date. In this ...

journal_title：Cancer letters

authors： Huang Q,Chen Z,Cheng P,Jiang Z,Wang Z,Huang Y,Yang C,Pan J,Qiu F,Huang J

更新日期：2019-07-28 00:00:00

abstract：:The therapeutic efficacy of antineoplastic purine analogs can be jeopardized by the emergence of drug-resistant mutant subpopulations of tumor cells. To determine whether such mutant populations might be eradicable in vivo with the type of HAT combination (hypoxanthine + an antifolate + thymidine) known to be selectiv...

journal_title：Cancer letters

authors： Moolten FL

更新日期：1986-06-01 00:00:00

abstract：:We have established three cloned cell lines (COS1NR, COS2NR and COS4NR) from the lung metastatic nodule of a highly metastatic variant of rat transplantable osteosarcoma, C-SLM. All three clones shared the same morphological characteristics and tumorigenicity, but their growth rates in vitro and metastatic ability in ...

journal_title：Cancer letters

authors： Honoki K,Mori T,Tsutsumi M,Tsujiuchi T,Kido A,Morishita T,Miyauchi Y,Dohi Y,Mii Y,Tamai S,Konishi Y

更新日期：1998-05-15 00:00:00

abstract：:This review article provides a comprehensive overview of the experimental data detailing the incidence, mechanism and significance of low dose hyper-radiosensitivity (HRS). Important discoveries gained from past and present studies are mapped and highlighted to illustrate the pathway to our current understanding of HR...

journal_title：Cancer letters

authors： Martin LM,Marples B,Lynch TH,Hollywood D,Marignol L

更新日期：2014-07-10 00:00:00

abstract：:Antimutagenic activity of copper chlorophyllin against various carcinogenic mutagens was assayed with Drosophila genotoxicity tests, i.e., the wing spot test for detecting somatic cell mutations and the DNA repair test for detecting DNA damage. In these tests, Drosophila larvae were fed carcinogens together with chlor...

journal_title：Cancer letters

authors： Negishi T,Nakano H,Kitamura A,Itome C,Shiotani T,Hayatsu H

更新日期：1994-08-15 00:00:00

abstract：:Pregnane X receptor (PXR) regulates cell proliferation and carcinogenesis in female reproductive tissue. We showed that PXR was expressed in cervical cells and tissue samples. PXR were lower or greatly diminished in cancer tissues compared to normal control. Functionally, activation of human PXR by rifampicin or ectop...

journal_title：Cancer letters

authors： Niu Y,Wang Z,Huang H,Zhong S,Cai W,Xie Y,Shi G

更新日期：2014-05-28 00:00:00

abstract：:The thiol N-acetylcysteine (NAC), a precursor of intracellular glutathione (GSH), efficiently prevented the induction of lung tumors in Swiss albino mice, when supplemented to the diet (0.2%) both before and after an i.p. injection of the carcinogen urethan (ethyl carbamate). Irrespective of urethan administration, NA...

journal_title：Cancer letters

authors： De Flora S,Astengo M,Serra D,Bennicelli C

更新日期：1986-09-01 00:00:00

abstract：:Monoclonal antibodies were produced and characterized in order to allow the monitoring of the urinary excretion of six modified nucleosides. The specificity of each antibody was determined and competitive solid-phase enzyme-linked immunoassays were designed, the sensitivity of which lay in the pmol range. Detection an...

journal_title：Cancer letters

authors： Reynaud C,Bruno C,Boullanger P,Grange J,Barbesti S,Niveleau A

更新日期：1992-01-31 00:00:00

abstract：:Oxaliplatin (trans-l-1,2-diaminocyclohexane oxalato Pt(II); 1R,2R-dach, l-OHP), its trans-d isomer (1S,2S-dach) and cis-dach (1R,2S-dach) isomers were compared in in vitro testing against human ovarian carcinoma cell lines A2780, A2780/CP (cisplatin resistant), A2780/l-OHP (oxaliplatin resistant), colon carcinoma cell...

journal_title：Cancer letters

authors： Pendyala L,Kidani Y,Perez R,Wilkes J,Bernacki RJ,Creaven PJ

更新日期：1995-11-06 00:00:00

abstract：:More than 50% of human tumors contain a mutation in p53. Over 90% of tumors are solid tumors. Solid tumors have low oxygenated regions, called hypoxic regions where the tumor cells are more resistant to radio- and chemo-therapy than their well-oxygenated counterparts. In this study, we constructed a cell-permeable p53...

journal_title：Cancer letters

authors： Yu Z,Wu J,Wu S,Jia P,Tong Y,Wu X,Wang Y

更新日期：2009-06-28 00:00:00

abstract：:This aim of this study was to measure the typical free radical-induced products of DNA bases in cellular DNA of cervical cancer tissues directly irradiated by applying brachytherapy to the patients. Significant increases in the amounts of modified bases over the control level were observed in the samples isolated afte...

journal_title：Cancer letters

authors： Foksinski M,Jaruga P,Makarewicz R,Olinski R

更新日期：1998-10-23 00:00:00

abstract：:Carcinogenic and modification potential of 6-mercaptopurine (6-MP) was studied in a medium-term bioassay system for rat liver carcinogenesis. F344 male rats were initiated with a single dose (200 mg/kg body wt.) of diethylnitrosamine (DEN) i.p. and fed diets containing either 0.005% or 0.02% 6-MP with or without 0.05%...

journal_title：Cancer letters

authors： Amanuma T,Maruyama H,Tsujiuchi T,Tsutsumi M,Denda A,Konishi Y

更新日期：1992-06-15 00:00:00

abstract：:Anticancer properties of chemically synthesized compounds have continuously been optimized for better efficacy and selectivity. Derivatives of heterocyclic compounds are well known to have selective antiproliferative effect against many types of cancer. In this study, we investigated the ability of an indigenously syn...

journal_title：Cancer letters

authors： Saleh AM,Taha MO,Aziz MA,Al-Qudah MA,AbuTayeh RF,Rizvi SA

更新日期：2016-06-01 00:00:00

abstract：:We have reported that the ectopic expression of progesterone receptor (PR) in MCF-7 cells disrupted the effects of estradiol-17beta (E2), and this anti-estrogenic effect of PR was associated with heightened E2 metabolism and inhibition of estrogen receptor (ER) binding to estrogen response element (ERE). This study de...

journal_title：Cancer letters

authors： Zheng ZY,Lin VC

更新日期：2008-09-18 00:00:00

abstract：:Ibrutinib, an inhibitor of Bruton tyrosine kinase (BTK), has shown promising pharmacologic effects in acute myeloid leukemia (AML). In this study, we report that abivertinib or AC0010, a novel BTK inhibitor, inhibits cell proliferation, reduces colony-forming capacity, and induces apoptosis and cell cycle arrest in AM...

journal_title：Cancer letters

authors： Huang S,Pan J,Jin J,Li C,Li X,Huang J,Huang X,Yan X,Li F,Yu M,Hu C,Jin J,Xu Y,Ling Q,Ye W,Wang Y,Jin J

更新日期：2019-10-01 00:00:00

abstract：:scFv fragments of a monoclonal antibody that penetrates living cells and localizes in nuclei were designed as fusion proteins with C-terminal p53 peptides and tested for restoring p53 function in p53 mutant cancer cells. scFv fragments transported a 30-mer C-terminal peptide of p53 into cancer cells and induced cellul...

journal_title：Cancer letters

authors： Weisbart RH,Miller CW,Chan G,Wakelin R,Ferreri K,Koeffler HP

更新日期：2003-06-10 00:00:00

abstract：:Bone metastasis is a major cause of prostate cancer (PCa) mortality. Although docetaxel chemotherapy initially extends patients' survival, in most cases PCa becomes chemoresistant and eventually progresses without a cure. In this study, we developed a novel small-molecule compound BKM1972, which exhibited potent in vi...

journal_title：Cancer letters

authors： Chen Y,Gera L,Zhang S,Li X,Yang Y,Mamouni K,Wu AY,Liu H,Kucuk O,Wu D

更新日期：2019-04-01 00:00:00

abstract：:A common germline polymorphism of p53 gene produces an Arginine to Proline change at aminoacid position 72. The resulting codon 72 variants have been reported associated with tumor susceptibility since they reduce p53 ability to activate apoptosis. Codon 72 polymorphism may play a role in subside vulnerability to diff...

journal_title：Cancer letters

authors： Granja F,Morari J,Morari EC,Correa LA,Assumpção LV,Ward LS

更新日期：2004-07-16 00:00:00

abstract：:Cancer results from genetic alterations in intracellular signaling pathways, which normally orchestrate the execution of developmental programs and the organismic response to extrinsic factors. Mutations in upstream activators and components of the cytoplasmic (Ras-Raf MEK-ERK) cascade frequently occur in tumors. In v...

journal_title：Cancer letters

authors： Rennefahrt U,Janakiraman M,Ollinger R,Troppmair J

更新日期：2005-01-10 00:00:00

abstract：:Cell migration and invasion leading to metastasis is a major cause of death from endometrial cancer (EC). We have shown that the rate of EC cell migration is inversely related to the level of insulin-like growth factor protein-3 (IGFBP-3). Down-regulation of IGFBP-3 by siRNA in EC cells accelerated migration without a...

journal_title：Cancer letters

authors： Gribben L,Baxter RC,Marsh DJ

更新日期：2012-04-01 00:00:00

abstract：:Anthocyanins belong to the flavonoid family and are ubiquitous in plants, especially in flower petals and fruit peels. We established that anthocyanins isolated from fruits of Aronia melanocarpa markedly inhibited the mutagenic activity of benzo(a)pyrene and 2-amino fluorene in the Ames test. In the Sister Chromatid E...

journal_title：Cancer letters

authors： Gasiorowski K,Szyba K,Brokos B,Kołaczyńska B,Jankowiak-Włodarczyk M,Oszmiański J

更新日期：1997-10-28 00:00:00

abstract：:Twenty-seven patients with malignant teratoma, 19 of which received radiation, are presented and the radiation response analyzed. Radiotherapy seems most effective in the palliation of undifferentiated (embryonal) teratoma of the gonads and sacrococcygeal region in early childhood. It is less effective, yet useful, in...

journal_title：Cancer letters

authors： Pantoja E,Roswit B

更新日期：1975-11-01 00:00:00

abstract：:The di-methyl-, di-ethyl-, di-propyl-, di-normal butyl-, and di-iso-butyl-ethers of hematoporphyrin were synthesized and shown to possess chromatographic properties similar to those of the tumorlocalizing components of hematoporphyrin derivative (Hpd). The cellular uptake of these ethers, as well as their retention in...

journal_title：Cancer letters

authors： Moan J,Rimington C,Sommer S

更新日期：1987-03-01 00:00:00

abstract：:Gastroesophageal reflux disease (GERD) is the main risk factor for Barrett's tumorigenesis. In this study, we investigated the role of NRF2 in response to exposure to acidic bile salts (ABS), in conditions that mimic GERD, using Barrett's esophagus cell models. We detected an increase in NRF2 protein levels, following...

journal_title：Cancer letters

authors： Peng D,Lu H,Zhu S,Zhou Z,Hu T,Chen Z,Zaika A,El-Rifai W

更新日期：2019-08-28 00:00:00

abstract：:In vitro cytotoxicity tests currently in use applied in the developmental stages of anticancer drug discovery are able to select the most potent compounds, but are not predictive of their potential toxicity. In this study, we have demonstrated the applicability of neutral red uptake assay using mouse fibroblasts Balb/...

journal_title：Cancer letters

authors： Popiołkiewicz J,Polkowski K,Skierski JS,Mazurek AP

更新日期：2005-11-08 00:00:00

abstract：:Although mutations of p53 and KRAS and activation of NF-κB signaling have been highly associated with chemoresistance and tumorigenesis of lung cancer, the interactive mechanisms between two of p53, KRAS, and NF-κB are elusive. In the present study, we first observed that blocking of NF-κB function in KRAS mutant A549...

journal_title：Cancer letters

authors： Yang L,Zhou Y,Li Y,Zhou J,Wu Y,Cui Y,Yang G,Hong Y

更新日期：2015-02-28 00:00:00

abstract：:Increased fatty acids (FAs) regulate pancreatic cancer progression, however, the detailed mechanism is not clear, and different forms of FAs may play diversified roles in pancreatic cancer. To elucidate the underlying mechanism, we compared the effects of four major types of FAs on pancreatic cancer growth both in cel...

journal_title：Cancer letters

authors： Yu M,Liu H,Duan Y,Zhang D,Li S,Wang F

更新日期：2015-05-01 00:00:00