Carbamoylation reactions of N-methyl-N'-aryl-N-nitrosoureas and corresponding phenyl isocyanates to 5'-amino-5'-deoxythymidine: importance of carbamoylation in mouse skin carcinogenic processes.

abstract：:Male outbred Sprague-Dawley rats were fed a choline-deficient diet containing 0.10% DL-ethionine for up to 30 weeks. Liver slices from rats killed 4, 6, 10, 14, 22 and 30 weeks after starting the treatment were histochemically analyzed for the following parameters: basophilia, expression of cytokeratin 19 (which in th...

journal_title：Carcinogenesis

authors： Steinberg P,Hacker HJ,Dienes HP,Oesch F,Bannasch P

更新日期：1991-02-01 00:00:00

abstract：:Crude plasma membranes were prepared from the liver of control rats or of rats submitted to an initiation by diethyl-nitrosamine and selection with 2-acetylaminofluorene and carbon tetrachloride (group IS) or of rats submitted to an initiation-selection protocol followed by a promotion with phenobarbital (group IS PB)...

journal_title：Carcinogenesis

authors： Marino A,Ravelingien N,De Cannière D,Préat V,Dehaye JP,Pector JC

更新日期：1991-04-01 00:00:00

abstract：:Metastatic disease is the leading cause of cancer mortality. Identifying biomarkers and regulatory mechanisms is important toward developing diagnostic and therapeutic tools against metastatic cancer. In this study, we demonstrated that podocalyxin-like 1 (PODXL) is overexpressed in breast tumor cells and increased in...

journal_title：Carcinogenesis

authors： Lin CW,Sun MS,Liao MY,Chung CH,Chi YH,Chiou LT,Yu J,Lou KL,Wu HC

更新日期：2014-11-01 00:00:00

abstract：:TP63, a member of the TP53 gene family, encodes two groups of three isoforms (alpha, beta and gamma). The TAp63 isoforms act as transcription factors. The DeltaNp63 isoforms lack the main transcription activation domain and act as dominant-negative inhibitors of transactivation (TA) isoforms. To clarify the role of th...

journal_title：Carcinogenesis

authors： Petitjean A,Ruptier C,Tribollet V,Hautefeuille A,Chardon F,Cavard C,Puisieux A,Hainaut P,Caron de Fromentel C

更新日期：2008-02-01 00:00:00

abstract：:The effect of changing the format of administration as well as the total dose of the promoting agent phenobarbital (PB) on the development of altered hepatic foci (AHF) was determined in an initiation-promotion protocol with female rats fed the purified AIN-76 diet. Effects on the total number of AHF and the volume pe...

journal_title：Carcinogenesis

authors： Xu YD,Dragan YP,Young T,Pitot HC

更新日期：1991-06-01 00:00:00

abstract：:The polypeptide hormone epidermal growth factor (EGF) has been shown to enhance adenovirus type 5 transformation of a cloned culture of rat embryo cells (CREF) and X-ray or u.v.-light induced transformation of 10T1/2 mouse embryo cells. In both systems, the degree of enhancement was quantitatively similar to that obse...

journal_title：Carcinogenesis

authors： Fisher PB,Mufson RA,Weinstein IB,Little JB

更新日期：1981-01-01 00:00:00

abstract：:Transgenic mice containing one copy of hepatitis B virus (HBV) genome without the core gene and expressing hepatitis B surface antigen (HBsAg) were crossed with C3H/He mice. The F1 hybrids (approximately 50% HBV positive and approximately 50% HBV negative) were treated with a single dose of diethylnitrosamine (NDEA) o...

journal_title：Carcinogenesis

authors： Dragani TA,Manenti G,Farza H,Della Porta G,Tiollais P,Pourcel C

更新日期：1990-06-01 00:00:00

abstract：UNLABELLED:Mitogen-activated protein kinase-activated protein kinase 2 (MAPKAPK2) is recognized as oncogenic and simulative role on tumorigenesis by virtue of abnormal expression in cancer including nasopharyngeal carcinoma (NPC). We hypothesized that the copy number variation (CNV)-30450, which duplicates the MAPKAPK2...

journal_title：Carcinogenesis

authors： Yang L,Liu B,Qiu F,Huang B,Li Y,Huang D,Yang R,Yang X,Deng J,Jiang Q,Zhou Y,Lu J

更新日期：2014-01-01 00:00:00

abstract：:The effect of co-administration of diethylnitrosamine (DEN) and Clophen A 50, a commercial mixture of polychlorinated biphenyls (PCB), on pre-neoplastic enzyme-altered islands in livers of female Sprague-Dawley rats was studied. The islands were identified by the loss of adenosine-5'-triphosphatase (ATPase), emergence...

journal_title：Carcinogenesis

authors： Deml E,Oesterle D

更新日期：1986-10-01 00:00:00

abstract：:Cytochrome P4501A1 (CYP1A1) has been implicated in the conversion of numerous polycyclic aromatic hydrocarbons into electrophilic species capable of binding covalently to DNA and has therefore been postulated to be involved in the initiation of carcinogenesis. The expression of CYP1A1 protein appears not to be constit...

journal_title：Carcinogenesis

authors： Drahushuk AT,McGarrigle BP,Larsen KE,Stegeman JJ,Olson JR

更新日期：1998-08-01 00:00:00

abstract：:Using an initiation--selection--promotion protocol for induction of liver tumors in Wistar rats, the modulating action of various peroxisome proliferators on neoplasia as well as on selected biochemical parameters was studied. After treatment with diethylnitrosamine (DEN), the animals were subsequently subjected to a ...

journal_title：Carcinogenesis

authors： Abdellatif AG,Préat V,Vamecq J,Nilsson R,Roberfroid M

更新日期：1990-11-01 00:00:00

abstract：:Poly(ADP-ribose) polymerase, which catalyzes the formation of poly(ADP-ribose) polymers, is an enzyme involved in cell proliferation, differentiation and transformation as well as in recovery from DNA damage. Poly(ADP-ribose) polymers are rapidly synthesized from the ADP-ribose moieties from intracellular NAD+, which,...

journal_title：Carcinogenesis

authors： Stierum RH,van Herwijnen MH,Hageman GJ,Kleinjans JC

更新日期：1994-04-01 00:00:00

abstract：:4,4'-Methylenediphenyl diisocyanate (MDI) is the most widely used isocyanate in the manufacture of polyurethanes. MDI has been implicated as one of the major causes of occupational asthma. Hydrolysis of MDI can yield 4,4'-methylenedianiline (MDA), which is a suspected human carcinogen. Thus the need to monitor occupat...

journal_title：Carcinogenesis

authors： Sepai O,Henschler D,Sabbioni G

更新日期：1995-10-01 00:00:00

abstract：:Both dehydroepiandrosterone (DHEA) and the synthetic steroid 16 alpha-Br-epiandrosterone (Br-Epi), a more potent inhibitor of glucose-6-phosphate dehydrogenase (G6PDH) than DHEA, inhibit the 12-O-tetradecanoylphorbol-13-acetate (TPA) stimulation of superoxide anion (O2-) formation by human neutrophils. DHEA has previo...

journal_title：Carcinogenesis

authors： Whitcomb JM,Schwartz AG

更新日期：1985-03-01 00:00:00

abstract：:Inhalation of diesel exhaust (DE), which contains soot particles with adsorbed mutagenic organic compounds, and its virtually mutagen-free soot particle analog, carbon black (CB), produce similar types and prevalences of pulmonary neoplasms in chronically exposed F344 rats. This result suggests that DE-induced neoplas...

journal_title：Carcinogenesis

authors： Swafford DS,Nikula KJ,Mitchell CE,Belinsky SA

更新日期：1995-05-01 00:00:00

abstract：:The resistant hepatocyte model was used to study expression of tumor-associated aldehyde dehydrogenase (ALDH) activity during the course of rat hepatocarcinogenesis. The hepatic ALDH phenotype was determined at intervals over 280 days by histochemical analysis, total ALDH activity assays and gel electrophoresis, using...

journal_title：Carcinogenesis

authors： Jones DE Jr,Evces S,Lindahl R

更新日期：1984-12-01 00:00:00

abstract：:The effect of oral vitamin C supplementation on intragastric ascorbate levels and gastric mucosal DNA damage as measured by the 32P-postlabelling assay was assessed in 43 patients. In patients with normal gastric mucosa, treatment with vitamin C resulted in elevation of intragastric ascorbate levels in all cases. In t...

journal_title：Carcinogenesis

authors： Dyke GW,Craven JL,Hall R,Garner RC

更新日期：1994-02-01 00:00:00

abstract：:Effects of tamoxifen (TAM) on development of uterine endometrial carcinogenesis were studied in intact and ovariectomized (OVX) mice initiated with N-ethyl-N'-nitro-N-nitrosoguanidine (ENNG). In experiment I, animals were implanted with cholesterol (ChL, controls) or TAM (5% w/w) and/or 17beta-oestradiol (E(2), 0.5% w...

journal_title：Carcinogenesis

authors： Takahashi M,Shimomoto T,Miyajima K,Iizuka S,Watanabe T,Yoshida M,Kurokawa Y,Maekawa A

更新日期：2002-09-01 00:00:00

abstract：:The cyclin-dependent kinase (Cdk) inhibitor p27(Kip1) (p27) is a marker of prognosis in many cancers, including breast cancer. Low p27 expression correlates with poor prognosis, especially in hormone receptor positive breast tumors. This association suggests a role for p27 in hormone-dependent cancer. We used the Wnt-...

journal_title：Carcinogenesis

authors： Glover CE,Gurley KE,Kim KH,Storer B,Fero ML,Kemp CJ

更新日期：2009-06-01 00:00:00

abstract：:Hepatocellular carcinoma (HCC), one of the most prevalent and lethal cancers, has shown an alarming rise in the USA. Without effective therapy for HCC, novel chemopreventive strategies may effectively circumvent the current morbidity and mortality. Oxidative stress predisposes to hepatocarcinogenesis and is the major ...

journal_title：Carcinogenesis

authors： Bishayee A,Bhatia D,Thoppil RJ,Darvesh AS,Nevo E,Lansky EP

更新日期：2011-06-01 00:00:00

abstract：:A line of C3H mouse fibroblasts designated CVP3SC6 (CVP) was found to be nonresponsive to the induction of morphological transformation by the polycyclic aromatic hydrocarbon benzo[a]pyrene (BaP) and its BaP-7,8-diol and BaP-diol-epoxide derivates. This cell line was, however, susceptible to BaP-induced mutation to ou...

journal_title：Carcinogenesis

authors： Gehly EB,Heidelberger C

更新日期：1982-01-01 00:00:00

abstract：:Cancer of the stomach is one of the most commonly diagnosed malignancies and remains an important cause of mortality world wide. This type of cancer is not uniformly distributed among populations but shows a marked variation in both incidence and mortality. Although gastric cancer is declining in many parts of the wor...

journal_title：Carcinogenesis

authors： Stadtländer CT,Waterbor JW

更新日期：1999-12-01 00:00:00

abstract：:Telomeres are critical in maintaining chromosome and genomic stability. Arsenic, a human carcinogen as well as an anticancer agent, is known for its clastogenicity. To better understand molecular mechanisms of arsenic actions, we investigated arsenite effects on telomere and telomerase and determined cell growth and a...

journal_title：Carcinogenesis

authors： Zhang TC,Schmitt MT,Mumford JL

更新日期：2003-11-01 00:00:00

abstract：:We previously reported that quinacrine (QC) has anticancer activity against breast cancer cells. Here, we examine the mechanism of action of QC and its ability to inhibit Wnt-TCF signaling in two independent breast cancer cell lines. QC altered Wnt-TCF signaling components by increasing the levels of adenomatous polyp...

journal_title：Carcinogenesis

authors： Preet R,Mohapatra P,Das D,Satapathy SR,Choudhuri T,Wyatt MD,Kundu CN

更新日期：2013-02-01 00:00:00

abstract：:Multiple myeloma (MM) is characterized by a wide spectrum of genetic changes. Global hypomethylation of repetitive genomic sequences such as long interspersed nuclear element 1 (LINE-1), Alu and satellite alpha (SAT-alpha) sequences has been associated with chromosomal instability in cancer. Methylation status of repe...

journal_title：Carcinogenesis

authors： Bollati V,Fabris S,Pegoraro V,Ronchetti D,Mosca L,Deliliers GL,Motta V,Bertazzi PA,Baccarelli A,Neri A

更新日期：2009-08-01 00:00:00

abstract：:Copenhagen (Cop) rats are completely resistant to the chemical induction of mammary adenocarcinomas, but their susceptibility to hepatocarcinogenesis is virtually unknown. Rat liver is a well-characterized and easily manipulated tissue in which to study carcinogenesis. Therefore, if Cop rats are resistant to hepatocar...

journal_title：Carcinogenesis

authors： Wood GA,Korkola JE,Lee VM,Sarma DS,Archer MC

更新日期：1997-09-01 00:00:00

abstract：:DNA mismatch repair (MMR) deficiency results in a strong mutator phenotype and high-frequency microsatellite instability (MSI-H), which are the hallmarks of tumors arising within Lynch syndrome. MSI-H is characterized by length alterations within simple repeated sequences, microsatellites. Lynch syndrome is primarily ...

journal_title：Carcinogenesis

authors： Imai K,Yamamoto H

更新日期：2008-04-01 00:00:00

abstract：:Tobacco-specific nitrosamines are a group of carcinogens that are present in tobacco and tobacco smoke. They are formed from nicotine and related tobacco alkaloids. Two of the nicotine-derived nitrosamines, NNK and NNN, are strong carcinogens in laboratory animals. They can induce tumors both locally and systemically....

journal_title：Carcinogenesis

authors： Hecht SS,Hoffmann D

更新日期：1988-06-01 00:00:00

abstract：:Colorectal cancer (CRC) displays a predilection for metastasis to liver. Although stromal cell-derived factor-1 (SDF-1)/CXCR4 plays an important role in the liver metastasis, the molecular mechanism still remains obscure. We previously reported that integrin αvβ6 was implicated in the progression of CRC. However, no d...

journal_title：Carcinogenesis

authors： Wang B,Wang W,Niu W,Liu E,Liu X,Wang J,Peng C,Liu S,Xu L,Wang L,Niu J

更新日期：2014-02-01 00:00:00

abstract：:The dorsal skins of 6-8 week old female SENCAR mice were initiated with a single application of 10 nmol of 7,12-dimethylbenz[a]anthracene (DMBA) and subsequently promoted twice/week with topical applications of vitamin E (dl-alpha-tocopherol, 80 mumol/treatment). Vitamin E from two separate commercial suppliers was te...

journal_title：Carcinogenesis

authors： Mitchel RE,McCann R

更新日期：1993-04-01 00:00:00