Differential oxidative stress induced by two different types of skin tumor promoters, benzoyl peroxide and 12-O-tetradecanoylphorbol-13-acetate.

abstract：:Previous epidemiological and laboratory studies have indicated an association between the ingestion of opium pyrolysates, dietary deficiencies and the high incidence of oesophageal cancer in subjects in north-east Iran. Pyrolysates of opium, and particularly of morphine, a major opium alkaloid, were both shown to cont...

journal_title：Carcinogenesis

authors： Friesen M,O'Neill IK,Malaveille C,Garren L,Hautefeuille A,Bartsch H

更新日期：1987-10-01 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：:In order to establish an animal model for studying the cause and prevention of esophageal adenocarcinoma (EAC) and its frequent precursor, Barrett's esophagus (BE), factors affecting the pathogenic processes were investigated in an esophagoduodenal anastomosis model with rats. Experiments by us and others have shown t...

journal_title：Carcinogenesis

authors： Goldstein SR,Yang GY,Curtis SK,Reuhl KR,Liu BC,Mirvish SS,Newmark HL,Yang CS

更新日期：1997-11-01 00:00:00

abstract：:Nitrosamine-induced hepatocarcinogenesis has been used to investigate the regulation and expression of different drug-metabolizing enzymes in preneoplastic and neoplastic lesions in the female Wistar rat. The enzymes investigated were two phenobarbital-inducible cytochrome P-450 (cyt. P-450) isoenzymes (PB1 and PB2, m...

journal_title：Carcinogenesis

authors： Buchmann A,Kuhlmann W,Schwarz M,Kunz W,Wolf CR,Moll E,Friedberg T,Oesch F

更新日期：1985-04-01 00:00:00

abstract：:Carbamoylation reactions of N-methyl-N'-aryl-N-nitrosoureas (I-X: X = -OCH3, -CH3, -H, -Cl, and -COCH3) and of their corresponding phenyl isocyanates (II-X: X = -OCH3, -CH3, -H, -Cl and -COCH3) to the amino group of 5'-amino-5'-deoxythymidine have been kinetically studied in a PBS. The pseudo-first-order rate constant...

journal_title：Carcinogenesis

authors： Yano K

更新日期：1992-04-01 00:00:00

abstract：:The role of BRCA1 in sporadic breast and ovarian cancers remains elusive. Direct involvement of BRCA1 in the development of breast and ovarian cancer is suggested by the finding that the BRCA1 promoter region CpG island is methylated in a proportion of breast and ovarian cancers. The aim of this study was to compare t...

journal_title：Carcinogenesis

authors： Bianco T,Chenevix-Trench G,Walsh DC,Cooper JE,Dobrovic A

更新日期：2000-02-01 00:00:00

abstract：:Ovarian cancer is developed from a single layer of thin epithelial cells covering the surface of ovary, named human ovarian surface epithelial cells. Like all primary human cells, human ovarian surface epithelial cells have a finite life span and will go into senescence and eventually die when cultured in vitro. Immor...

journal_title：Carcinogenesis

authors： Yang G,Rosen DG,Mercado-Uribe I,Colacino JA,Mills GB,Bast RC Jr,Zhou C,Liu J

更新日期：2007-01-01 00:00:00

abstract：:Untreated and Aroclor 1254-pretreated male Wistar rats were given a single dose of 1.0 mg/kg body weight of randomly tritium-labelled 2-amino-1-methyl-6-phenylimidazo[4,5-b] pyridine (3H-PhIP) by oral intubation. Urine and faeces were collected at 24, 48 and 72 hours after dosing, and total radioactivity determined. A...

journal_title：Carcinogenesis

authors： Dragsted LO,Frandsen H,Reistad R,Alexander J,Larsen JC

更新日期：1995-11-01 00:00:00

abstract：:When exogenous [(3)H]retinol (vitamin A) was added to culture medium, normal human epithelial cells from the oral cavity, skin, lung and breast took up and esterified essentially all of the [(3)H]retinol within a few hours. As shown by [(3)H]retinol pulse-chase experiments, normal epithelial cells then slowly hydrolyz...

journal_title：Carcinogenesis

authors： Guo X,Ruiz A,Rando RR,Bok D,Gudas LJ

更新日期：2000-11-01 00:00:00

abstract：:The mapping near Kras2 of pulmonary adenoma susceptibility 1 (Pas1), a major locus affecting inherited predisposition to lung cancer in mice prompted us to test the homologous human region (12p12) for association with lung adenocarcinoma, by a population-based study. We genotyped 213 lung adenocarcinoma patients and 2...

journal_title：Carcinogenesis

authors： Manenti G,De Gregorio L,Pilotti S,Falvella FS,Incarbone M,Ravagnani F,Pierotti MA,Dragani TA

更新日期：1997-10-01 00:00:00

abstract：:4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), a major metabolite of the tobacco-specific pulmonary carcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), has a chiral center but the tumorigenicity of the NNAL enantiomers has not been previously examined. In this study, we assessed the relative tumori...

journal_title：Carcinogenesis

authors： Upadhyaya P,Kenney PM,Hochalter JB,Wang M,Hecht SS

更新日期：1999-08-01 00:00:00

abstract：:Dietary-related indoles, isothiocyanates, and the allyl isothiocyanate glucosinolate, sinigrin, were administered to F344 rats in the diet for 2 weeks (chronic protocol) or by gavage 2 h before sacrifice (acute protocol) and the effects of these pretreatments on the alpha-hydroxylation of two carcinogenic nitrosamines...

journal_title：Carcinogenesis

authors： Chung FL,Wang MY,Hecht SS

更新日期：1985-04-01 00:00:00

abstract：:Hypoxia-inducible factors (HIFs), in particular HIF-1alpha, have been implicated in tumor biology. However, HIF target genes in the esophageal tumor microenvironment remain elusive. Gene expression profiling was performed upon hypoxia-exposed non-transformed immortalized human esophageal epithelial cells, EPC2-hTERT, ...

journal_title：Carcinogenesis

authors： Lee JJ,Natsuizaka M,Ohashi S,Wong GS,Takaoka M,Michaylira CZ,Budo D,Tobias JW,Kanai M,Shirakawa Y,Naomoto Y,Klein-Szanto AJ,Haase VH,Nakagawa H

更新日期：2010-03-01 00:00:00

abstract：:Hairless mice were given 5 topical applications of 470 nmol 20-methylcholanthrene (MCA) at one week intervals. In one experimental group the MCA was dissolved in reagent grade acetone alone, in another group it was dissolved in a mixture consisting of 50% acetone and 50% dimethyl sulfoxide (DMSO). A control group rece...

journal_title：Carcinogenesis

authors： Iversen OH,Thorud E,Volden G

更新日期：1981-01-01 00:00:00

abstract：:Breakdown of basement membrane (BM) is believed to be an essential step for tumor invasion and metastases. We have previously demonstrated that matrix metalloproteinase-9 (MMP-9), the 92 kDa collagenase expression correlates with metastases in human colorectal cancer (CRC). This study explores the relationship between...

journal_title：Carcinogenesis

authors： Zeng ZS,Cohen AM,Guillem JG

更新日期：1999-05-01 00:00:00

abstract：:Eight different forms of cytochrome P-450 have been isolated from the liver microsomes of male Sprague-Dawley rats and compared with previously characterized forms on the basis of chromatographic behavior, absorption maximum of the carbon monooxide complex, apparent molecular weight upon SDS-disc gel electrophoresis, ...

journal_title：Carcinogenesis

authors： Aström A,DePierre JW

更新日期：1985-01-01 00:00:00

abstract：:Using whole blood from 15 twin pairs discordant for breast cancer and high-resolution (450K) DNA methylation analysis, we identified 403 differentially methylated CpG sites including known and novel potential breast cancer genes. Confirming the results in an independent validation cohort of 21 twin pairs determined th...

journal_title：Carcinogenesis

authors： Heyn H,Carmona FJ,Gomez A,Ferreira HJ,Bell JT,Sayols S,Ward K,Stefansson OA,Moran S,Sandoval J,Eyfjord JE,Spector TD,Esteller M

更新日期：2013-01-01 00:00:00

abstract：:The potential carcinogenic activity of 5,6-dimethoxysterigmatocystin (DMSC) was examined by oral administration in rats. In Experiment I, all of eight effective ACI/N rats given DMSC in the diet at a concentration of 50 p.p.m. developed neoplastic nodules of the liver. Five rats developed hepatocellular carcinomas and...

journal_title：Carcinogenesis

authors： Mori H,Sugie S,Yoshimi N,Kuniyasu T,Iwata H,Kawai K,Hamasaki T

更新日期：1988-06-01 00:00:00

abstract：:Epithelial-mesenchymal transition (EMT) is an important process implicated in tumor invasion and metastasis. Twist1 is a transcription factor that induces EMT, including E-cadherin suppression and cancer cell migration and invasion; hence it promotes cancer metastasis. Twist1 directly or indirectly regulates the expre...

journal_title：Carcinogenesis

authors： Nam EH,Lee Y,Moon B,Lee JW,Kim S

更新日期：2015-03-01 00:00:00

abstract：:Alternative splicing regulators have emerged as new players in cancer development, modulating the activities of many tumor suppressors and oncogenes and regulating the signaling pathways. However, little is known about the mechanisms by which these oncogenic splicing factors lead to cellular transformation. We have sh...

journal_title：Carcinogenesis

authors： Shimoni-Sebag A,Lebenthal-Loinger I,Zender L,Karni R

更新日期：2013-11-01 00:00:00

abstract：:An iron chelate, ferric nitrilotriacetate (Fe-NTA), induces renal proximal tubular damage, a consequence of iron-catalysed Fenton-like reactions, that finally leads to a high incidence of renal cell carcinoma (RCC) in rodents. Glutathione S-transferase (GST) is a family of enzymes that play an important role in detoxi...

journal_title：Carcinogenesis

authors： Tanaka T,Nishiyama Y,Okada K,Satoh K,Fukuda A,Uchida K,Osawa T,Hiai H,Toyokuni S

更新日期：1998-05-01 00:00:00

abstract：:Retinoids have been shown to exert an anticarcinogenic effect through suppression of the cell cycle, induction of apoptosis and/or differentiation. In rat liver, in particular, retinoic acid has been shown to inhibit regeneration after partial hepatectomy, most probably through repression of the expression of c-fos an...

journal_title：Carcinogenesis

authors： Ledda-Columbano GM,Pibiri M,Molotzu F,Cossu C,Sanna L,Simbula G,Perra A,Columbano A

更新日期：2004-11-01 00:00:00

abstract：:Acutely transforming retrovirus AKT8 in rodent T cell lymphoma (Akt) phosphorylates and regulates the function of many cellular proteins involved in processes such as metabolism, apoptosis and proliferation. However, the precise mechanisms by which Akt promotes cell survival and inhibits apoptosis have been characteri...

journal_title：Carcinogenesis

authors： Chen HZ,Zhao BX,Zhao WX,Li L,Zhang B,Wu Q

更新日期：2008-11-01 00:00:00

abstract：:The expression of CYP1B1 in human mammary fibroblasts (HMFs) was characterized as a potential modulator of their individual function as well as effects on adjacent mammary epithelia. We have used these characteristics to explore the diversity of fibroblast cells isolated from reduction mammoplasty patients and from di...

journal_title：Carcinogenesis

authors： Eltom SE,Larsen MC,Jefcoate CR

更新日期：1998-08-01 00:00:00

abstract：:3-Methyladenine DNA glycosylases initiate base excision repair by flipping the nucleotide bearing the target base out of double-stranded DNA into an active site pocket for glycosylic bond cleavage and base release. Substrate bases for the murine 3-methyladenine DNA glycosylase (other than 3-methyladenine) include hypo...

journal_title：Carcinogenesis

authors： Wyatt MD,Samson LD

更新日期：2000-05-01 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：:E mu-pim-1 transgenic mice, which overexpress the pim-1 oncogene in lymphoid tissues, have shown increased susceptibility to induction of T cell lymphomas by N-ethyl-N-nitrosourea, a direct-acting chemical carcinogen (Nature, 340, 61-63, 1989). We sought to further evaluate E mu-pim-1 transgenic mice as a potential te...

journal_title：Carcinogenesis

authors： Storer RD,Cartwright ME,Cook WO,Soper KA,Nichols WW

更新日期：1995-02-01 00:00:00

abstract：:In Saccharomyces cerevisiae a number of chemical agents induce synthesis of cytochrome P450. A cytochrome P450 gene has been well characterized in this yeast: CYP51, which codes for a constitutive enzyme involved in the 14 alpha-demethylation of lanosterol, a key step in the biosynthesis of ergosterol. In this work, w...

journal_title：Carcinogenesis

authors： Del Carratore R,Morichetti E,Cecchini E,Bronzetti G,Gallo E,Galeotti CL

更新日期：1992-11-01 00:00:00

abstract：:Gangliosides from liver parenchymal and non-parenchymal cells were isolated from Fischer 344 rats that had been fed normal diet or a diet supplemented with 0.03% N-2-acetylaminofluorene (AAF) for 4 weeks. Gangliosides from liver cell fractions were characterized by an induction of both II3NeuAcIV3 alpha GalIV2FucGg4 a...

journal_title：Carcinogenesis

authors： Holmes EH

更新日期：1990-01-01 00:00:00

abstract：:The purpose of this study was to compare the metabolism and DNA binding of aflatoxicol (AFL) with that of aflatoxin B1 (AFB1) in vivo and in isolated hepatocytes from Mt Shasta strain rainbow trout (Salmo gairdneri). Maximum total binding of [3H]AFL to liver DNA from trout exposed by intraperitoneal injection was 38-4...

journal_title：Carcinogenesis

authors： Loveland PM,Wilcox JS,Pawlowski NE,Bailey GS

更新日期：1987-08-01 00:00:00