Nitric oxide induces cyclooxygenase expression and inhibits cell growth in colon cancer cell lines.

abstract：:2-Hexenal is an alpha,beta-unsaturated carbonyl compound which is mutagenic, genotoxic and forms cyclic 1,N2-propanodeoxyguanosine adducts like similar propenals for which carcinogenicity was shown, e.g. acrolein or crotonaldehyde. Since humans have a permanent intake of 2-hexenal via vegetarian food this genotoxic co...

journal_title：Carcinogenesis

authors： Schuler D,Eder E

更新日期：1999-07-01 00:00:00

abstract：:The PEA3/E1AF/ETV4 gene encodes an Ets-related transcription factor that is expressed in the epithelial cells of the mammary gland. Previous reports have shown that PEA3 can up-regulate promoter activities of many genes associated with tumorigenesis. A significant fraction of those encode matrix metalloproteinases (MM...

journal_title：Carcinogenesis

authors： Bièche I,Tozlu S,Girault I,Onody P,Driouch K,Vidaud M,Lidereau R

更新日期：2004-03-01 00:00:00

abstract：:Mammalian DNA contains bulky endogenous DNA modifications (I-compounds), which increase with age in unexposed animals, as shown by 32P-postlabeling. We have examined the perinatal formation of a subclass (type II) of I-compounds in rat liver, kidney, skin and lung. These I-compounds represent bulky oxidative DNA lesio...

journal_title：Carcinogenesis

authors： Randerath E,Zhou GD,Randerath K

更新日期：1996-12-01 00:00:00

abstract：:The metabolism of the carcinogenic pentacyclic azaaromatic compound, dibenz[a,j]acridine, has been examined in liver microsomal incubations using preparations from 3-methylcholanthrene-pretreated Wistar rats. Using authentic synthetic standards, u.v. spectroscopy and mass spectrometry, the following were proved to be ...

journal_title：Carcinogenesis

authors： Gill JH,Duke CC,Rosario CA,Ryan AJ,Holder GM

更新日期：1986-08-01 00:00:00

abstract：:Oxidative stress has consistently been linked to breast carcinogenesis, and mitochondria play a significant role in regulating reactive oxygen species generation. In our previous study, we found that increased levels of mitochondrial DNA (mtDNA) copy number and the presence of mitochondrial length heteroplasmies in th...

journal_title：Carcinogenesis

authors： Shen J,Wan J,Song R,Zhao H

更新日期：2015-11-01 00:00:00

abstract：:The repair of u.v.-induced damage in human and rodent cells was investigated at the level of DNA loops attached to the nuclear matrix. After 2 h post-u.v. incubation, DNase I digestion studies revealed a 3- to 4-fold enrichment of repair-labeled DNA at the nuclear matrix in four xeroderma pigmentosum cell strains belo...

journal_title：Carcinogenesis

authors： Mullenders LH,van Kesteren AC,Bussmann CJ,van Zeeland AA,Natarajan AT

更新日期：1986-06-01 00:00:00

abstract：:This study was designed to investigate the role of the epidermal growth factor receptor (EGFR) and its ligands in chemically induced mouse bladder cancer. Bladder tumours were induced in C57Bl/6 and B6D2F1 mice by treatment with the carcinogen, N:-butyl-N:-(4-hydroxybutyl) nitrosamine (BBN). The levels of mRNA for EGF...

journal_title：Carcinogenesis

authors： el-Marjou A,Delouvée A,Thiery JP,Radvanyi F

更新日期：2000-12-01 00:00:00

abstract：:Retroelements constitute a large part of the human genome. These sequences are mostly silenced in normal cells, but genome-wide DNA hypomethylation in cancers might lead to their re-expression. Whether this re-expression really occurs in human cancers is largely unkown. We therefore investigated expression and DNA met...

journal_title：Carcinogenesis

authors： Goering W,Ribarska T,Schulz WA

更新日期：2011-10-01 00:00:00

abstract：:Colorectal cancer is the second leading cause of cancer deaths worldwide with diet playing a prominent role in disease initiation and progression. Flavonoids are secondary plant compounds that are suggested as protective ingredients of a diet rich in fruits and vegetables. We here tested whether flavone, a flavonoid t...

journal_title：Carcinogenesis

authors： Winkelmann I,Diehl D,Oesterle D,Daniel H,Wenzel U

更新日期：2007-07-01 00:00:00

abstract：:Receptor tyrosine kinase EphB3 is expressed in cells in the bottom of intestinal crypts near stem cell niches. Loss of Ephb3 has recently been reported to produce invasive colorectal carcinoma in Apc(Min/+) mice and EphB-mediated compartmentalization was demonstrated to be a mechanism suppressing colorectal cancer pro...

journal_title：Carcinogenesis

authors： Chiu ST,Chang KJ,Ting CH,Shen HC,Li H,Hsieh FJ

更新日期：2009-09-01 00:00:00

abstract：:Changes in lipid metabolism were monitored in rat hepatocyte nodules at certain time points over 9 months. Tissue obtained from partially hepatectomized rats, collected over a period of 7 days, were included as a control for normal hepatocyte cell proliferation. Two important features regarding the lipid profiles of h...

journal_title：Carcinogenesis

authors： Abel S,Smuts CM,de Villiers C,Gelderblom WC

更新日期：2001-05-01 00:00:00

abstract：:The enzyme O6-methylguanine-DNA methyltransferase repairs alkylation-induced DNA damage, O6-methylguanine and O4-methylthymine, the former being formed more frequently. Previously, by means of gene targeting, we generated mice in which alleles for methyltransferase were disrupted. We now use these mouse lines, which a...

journal_title：Carcinogenesis

authors： Iwakuma T,Sakumi K,Nakatsuru Y,Kawate H,Igarashi H,Shiraishi A,Tsuzuki T,Ishikawa T,Sekiguchi M

更新日期：1997-08-01 00:00:00

abstract：:We have previously shown that addition of short chain fructo-oligosaccharides (indigestible carbohydrates) to food prevented colon tumors in C57BL/6-Apc(Min/+) mice, a model for human colon cancer. As gut-associated lymphoid tissue was concomitantly developed, we suggested that the immune response generated by this fo...

journal_title：Carcinogenesis

authors： Pierre F,Perrin P,Bassonga E,Bornet F,Meflah K,Menanteau J

更新日期：1999-10-01 00:00:00

abstract：:Histone deacetylase (HDAC) inhibitors have the potential to derepress epigenetically silenced genes in cancer cells, leading to cell cycle arrest and apoptosis. In the present study, we screened several garlic-derived small organosulfur compounds for their ability to inhibit HDAC activity in vitro. Among the organosul...

journal_title：Carcinogenesis

authors： Nian H,Delage B,Pinto JT,Dashwood RH

更新日期：2008-09-01 00:00:00

abstract：:Phenobarbital (PB) is a potent tumor promoter in rodent liver. In this study we investigated whether PB selectively promotes a population of initiated cells with reduced levels of transforming growth factor-beta (TGF beta) receptors types I, II and III. Liver tumors were induced in male Fischer F344 rats by diethylnit...

journal_title：Carcinogenesis

authors： Mansbach JM,Mills JJ,Boyer IJ,De Souza AT,Hankins GR,Jirtle RL

更新日期：1996-01-01 00:00:00

abstract：:Loss of gap junctional intercellular communication (GJIC) is a characteristic of cancer cells. Since a coordinated interaction of epithelial tumor cells with stromal cells is a prerequisite for tumor invasion and metastasis, the present study was designed to test the hypothesis that skin-derived tumor cells may modula...

journal_title：Carcinogenesis

authors： Stuhlmann D,Ale-Agha N,Reinehr R,Steinbrenner H,Ramos MC,Sies H,Brenneisen P

更新日期：2003-11-01 00:00:00

abstract：:Isoflavone genistein is a specific inhibitor of protein tyrosine kinase (PTK) and has been shown to have a variety of anticancer activities in cultured cells and animal models. We report here that genistein significantly inhibits 7,12-dimethylbenz[a]anthracene (DMBA)-initiated and 12-O-tetradecanoyl phorbol-13-acetate...

journal_title：Carcinogenesis

authors： Wei H,Bowen R,Zhang X,Lebwohl M

更新日期：1998-08-01 00:00:00

abstract：:The rates of formation and disappearance of benzo[a]pyrene (B[a]P) DNA-adducts were analyzed in the epidermis of SENCAR mice over a 21-day time course. Mice were treated topically with 200 nmol/mouse of [3H]B[a]P at various times prior to sacrifice. The formation and disappearance of total adducts as well as individua...

journal_title：Carcinogenesis

authors： DiGiovanni J,Decina PC,Prichett WP,Fisher EP,Aalfs KK

更新日期：1985-05-01 00:00:00

abstract：:This study presents the physical characterization of mutants induced in mammalian cells by high linear energy transfer alpha-particle radiation that simulates exposure to radon daughters. Alpha-Particles from accelerated 4He at 150 keV/microns were used to induce 20 Chinese hamster ovary mutants that are deficient in ...

journal_title：Carcinogenesis

authors： Jin Y,Yie TA,Carothers AM

更新日期：1995-08-01 00:00:00

abstract：:Chloroethylnitrosoureas (CNU) are antitumor agents which produce DNA interstrand crosslinks. We have proposed that crosslinks are produced in DNA via monoadduct formation at the guanine-O6 position, followed by a delayed reaction with the opposite DNA strand. Human cells are known to differ in their capacity to repair...

journal_title：Carcinogenesis

authors： Zlotogorski C,Erickson LC

更新日期：1983-01-01 00:00:00

abstract：:Sphingadienes (SDs) derived from soy and other natural sphingolipids are cytotoxic to colon cancer cells via an Akt-dependent mechanism and reduce adenoma formation in Apc(Min/+) mice. Wnt signaling is fundamental to colon carcinogenesis and is the basis for spontaneous tumorigenesis in Apc(Min/+) mice and patients wi...

journal_title：Carcinogenesis

authors： Kumar A,Pandurangan AK,Lu F,Fyrst H,Zhang M,Byun HS,Bittman R,Saba JD

更新日期：2012-09-01 00:00:00

abstract：:In vitro activation of benzo[a]pyrene to protein-binding forms was investigated with the following two systems: (1) various fractions of human and rat blood had a potential of activating benzo[a]pyrene to forms binding to proteins in the presence of linoleic or arachidonic acid. Red blood cells activated much more ben...

journal_title：Carcinogenesis

authors： Nemoto N

更新日期：1986-02-01 00:00:00

abstract：:Resveratrol has elicited many provocative anticancer effects in laboratory animals and cultured cells, including reduced levels of oxidative DNA damage, inhibition of tumor initiation and progression and induction of apoptosis in tumor cells. Use of resveratrol as a cancer-preventive agent in humans will require that ...

journal_title：Carcinogenesis

authors： Denissova NG,Nasello CM,Yeung PL,Tischfield JA,Brenneman MA

更新日期：2012-01-01 00:00:00

abstract：:Absorption, metabolism and DNA binding of 2-nitrofluorene (NF) was studied in isolated, perfused and ventilated rat lungs and in lung microsomal incubations. Comparisons were made between control animals and animals treated with beta-naphthoflavone (BNF), a 2,3,7,8-tetrachlorodibenzo(rho)dioxin (TCDD) receptor ligand ...

journal_title：Carcinogenesis

authors： Törnquist S,Möller L,Gabrielsson J,Gustafsson JA,Toftgård R

更新日期：1990-08-01 00:00:00

abstract：:DNA-demethylating agents activate tumor suppressor genes that are silenced by DNA methylation in cancer and are therefore emerging as a novel approach to cancer therapy. 5-azacytidine (VIDAZA), the first representative of this class of drugs was approved for treatment of myelodysplastic syndromes and is currently bein...

journal_title：Carcinogenesis

authors： Chik F,Machnes Z,Szyf M

更新日期：2014-01-01 00:00:00

abstract：:To better understand drug and carcinogen metabolism pathways in head and neck squamous cell carcinoma we assayed the principal drug- and carcinogen-metabolizing enzyme systems in both tumors and their corresponding adjacent non-tumoral tissues. Cytochromes P450 (1A1/A2, 2B1/B2, 2C8-10, 2E1, 3A4), epoxide hydrolase and...

journal_title：Carcinogenesis

authors： Janot F,Massaad L,Ribrag V,de Waziers I,Beaune PH,Luboinski B,Parise O Jr,Gouyette A,Chabot GG

更新日期：1993-07-01 00:00:00

abstract：:Following intraperitoneal administration of [3H] aflatoxin B1 (AFB1) to young adult male rats, there is rapid uptake of the carcinogen by the liver, the target organ for carcinogenesis, leading to DNA covalent binding. Acid hydrolysis of this DNA shows that after 2h, the major DNA adduct is trans 8,9-dihydro-8-(7-guan...

journal_title：Carcinogenesis

authors： Hertzog PJ,Lindsay Smith JR,Garner RC

更新日期：1980-09-01 00:00:00

abstract：:We have studied the influence of genetic polymorphisms in the xenobiotic-metabolizing genes GSTM1, GSTP1, GSTT1, EPHX1, NAT1 and NAT2 and the folate-metabolizing genes MTR and MTHFR on the frequencies of cells with chromosomal aberrations (CAs) in peripheral lymphocytes of Norwegian men. Log-linear Poisson regression ...

journal_title：Carcinogenesis

authors： Skjelbred CF,Svendsen M,Haugan V,Eek AK,Clausen KO,Kure EH,Tuimala JT,Svendsen MV,Norppa H,Hansteen IL

更新日期：2011-03-01 00:00:00

abstract：:Oltipraz (4-methyl-5-(2-pyrazinyl)-1,2-dithiole-3-thione) (OPZ) is recognized as a potent chemoprotective agent against chemical-induced carcinogenesis in several animal models and is thought to act mainly by inducing phase II conjugating together with inhibiting phase I detoxication enzymes. The present study was und...

journal_title：Carcinogenesis

authors： Antras-Ferry J,Mahéo K,Chevanne M,Dubos MP,Morel F,Guillouzo A,Cillard P,Cillard J

更新日期：1997-11-01 00:00:00

abstract：:7,8-Dihydro-8-oxo-2'-deoxyguanosine (8-oxo-dG) was measured as an indicator of nickel-induced oxidative base damage in the presence of H2O2. Heterochromatic proteins isolated from Chinese hamster liver cells enhanced the formation of 8-oxo-dG induced by NiCl2 and H2O2 in vitro, whereas euchromatic proteins inhibited t...

journal_title：Carcinogenesis

authors： Huang X,Kitahara J,Zhitkovich A,Dowjat K,Costa M

更新日期：1995-08-01 00:00:00