Mutagenicity of the mononitrobenzo[a]pyrenes in Chinese hamster ovary cells mediated by rat hepatocytes or liver S9.

abstract：:The three human leukocyte antigen (HLA) class I antigens, HLA-A, HLA-B and HLA-C, play important roles in the elimination of transformed cells by cytotoxic T cells. Frequent loss of expression of these antigens at the cell surface has been observed in many human cancers. Various mechanisms for post-transcriptional reg...

journal_title：Carcinogenesis

authors： Nie Y,Yang G,Song Y,Zhao X,So C,Liao J,Wang LD,Yang CS

更新日期：2001-10-01 00:00:00

abstract：:The dysplastic nevus syndrome (DNS) is a preneoplastic melanocyte abnormality which occurs in families affected by hereditary cutaneous malignant melanoma (HCMM). A putative role of host-environmental interactions in the etiology of hereditary melanoma has been strengthened by the recent finding that fibroblasts deriv...

journal_title：Carcinogenesis

authors： Smith PJ,Greene MH,Adams D,Paterson MC

更新日期：1983-01-01 00:00:00

abstract：:Mutations of the tumor suppressor gene p53 have been found in hepatocellular carcinomas (HCCs) from many countries where HCC is common, but p53 mutations detected by direct sequencing in HCCs from the United States (where HCC is uncommon) have been reported only rarely. p53 Exons 1 to 11 were analyzed by polymerase ch...

journal_title：Carcinogenesis

authors： Kazachkov Y,Khaoustov V,Yoffe B,Solomon H,Klintmalm GB,Tabor E

更新日期：1996-10-01 00:00:00

abstract：:Hepatocyte growth factor (HGF)-stimulated Met signaling influences tumor survival, growth and progression, all processes involving the transcription factor NF-kappaB. NF-kappaB plays a complex role in the control of survival due to the influence of cellular factors acting downstream. We undertook a comparative investi...

journal_title：Carcinogenesis

authors： Tacchini L,De Ponti C,Matteucci E,Follis R,Desiderio MA

更新日期：2004-11-01 00:00:00

abstract：:Oxidative DNA modifications such as 7,8-dihydro-8-oxoguanine (8-oxoG) are generated endogenously in apparently all living cells. The defect of the repair of 8-oxoG in Csb(m/m)Ogg1⁻(/)⁻ mice results in elevated basal levels of these lesions and increased frequencies of spontaneous mutations, which initiate tumorigenesi...

journal_title：Carcinogenesis

authors： Fusser M,Nesse GJ,Khobta A,Xia N,Li H,Klungland A,Epe B

更新日期：2011-01-01 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：:Mutations in genes important for the preservation of genome stability can increase the frequency of gene amplification, a process relevant to tumor development. To investigate whether telomerase, the enzyme deputed to telomere maintenance, also plays a role in gene amplification, we studied the amplification of the ca...

journal_title：Carcinogenesis

authors： Rebuzzini P,Martinelli P,Blasco M,Giulotto E,Mondello C

更新日期：2007-03-01 00:00:00

abstract：:Measurements were made of the effects of phenolic compounds, some of which are present in the human diet, on the nitrosation of proline by nitrite to give N-nitrosoproline (NPRO). In vitro, resorcinol, catechin, p-nitrosophenol and phenol were catalysts and chlorogenic acid an inhibitor; guaiacol showed a marginal cat...

journal_title：Carcinogenesis

authors： Pignatelli B,Bereziat JC,Descotes G,Bartsch H

更新日期：1982-01-01 00:00:00

abstract：:Carcinogenicity of catechol, a naturally occurring and industrial chemical which has been shown to have strong cell proliferating potential on rat glandular stomach epithelium, was investigated in male and female F344 rats and B6C3F1 mice. Groups of 30 male and female F344 rats and B6C3F1 mice were treated with 0.8% c...

journal_title：Carcinogenesis

authors： Hirose M,Fukushima S,Tanaka H,Asakawa E,Takahashi S,Ito N

更新日期：1993-03-01 00:00:00

abstract：:The purpose of this study was to determine if decreasing dietary protein from 24% (high protein) to 5% casein (low protein), substituting sucrose and cornstarch isocalorifically for casein, would modify the activity of protein kinase C (PKC) alpha and beta isoenzymes, as well as the expression of PKC alpha, beta, delt...

journal_title：Carcinogenesis

authors： La Porta CA,Comolli R

更新日期：1995-05-01 00:00:00

abstract：:Deregulated microRNAs (miRNAs) and their roles in cancer development have attracted much attention. Two miRNAs, miR-15a and miR-16, which act as putative tumor suppressor by targeting the oncogene BCL2, have been implicated in cell cycle, apoptosis and proliferation. In this study, we investigated the possible role ...

journal_title：Carcinogenesis

authors： Sun CY,She XM,Qin Y,Chu ZB,Chen L,Ai LS,Zhang L,Hu Y

更新日期：2013-02-01 00:00:00

abstract：:Long non-coding RNAs (lncRNAs) are regarded as important functional regulators of various biological processes and are also known to be involved in the occurrence and development of human cancers, including breast cancer (BC). In our present study, the RNA expression profiling data for a large cohort of human BC sampl...

journal_title：Carcinogenesis

authors： Fang K,Hu C,Zhang X,Hou Y,Gao D,Guo Z,Li L

更新日期：2020-09-24 00:00:00

abstract：:The ability of dietary retinyl palmitate, canthaxanthin or the combination of both, to prevent induction of immunosuppression by UVB irradiation was tested by passive transfer of splenocytes. The basal diet was the American Institute of Nutrition diet 76A, containing 4 IU retinyl palmitate/g diet. Groups of 55 mice we...

journal_title：Carcinogenesis

authors： Gensler HL

更新日期：1989-01-01 00:00:00

abstract：:Bioassays and DNA-binding studies of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and its analogs with deuterium substitution at the positions alpha to the nitrosamino group ([4,4-D2]NNK and [CD3]NNK) were carried out in A/J mice in order to assess the potential importance of DNA methylation or pyridyloxobutyl...

journal_title：Carcinogenesis

authors： Hecht SS,Jordan KG,Choi CI,Trushin N

更新日期：1990-06-01 00:00:00

abstract：:Soy-based products consumed in Asian countries are minimally processed whereas in the USA many of the soy foods and soy ingredients are highly processed. Soy foods contain complex mixtures of bioactive compounds, which may interact with one another. The objective of this study was to evaluate the ability of various so...

journal_title：Carcinogenesis

authors： Allred CD,Allred KF,Ju YH,Goeppinger TS,Doerge DR,Helferich WG

更新日期：2004-09-01 00:00:00

abstract：:The oxidative metabolites of estrogen have been proposed to play an important role in the development of some human cancers. The two major pathways of estrogen metabolism, to the carcinogenic 4-hydroxyestradiol (4-OHE2) and to the non-carcinogenic 2-hydroxyestradiol (2-OHE2), are mediated by cytochromes P450 CYP1B1 an...

journal_title：Carcinogenesis

authors： Husbeck B,Powis G

更新日期：2002-10-01 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：:We have previously reported the disposition of benzo[a]pyrene (B[a]P) and its metabolites in male Sprague-Dawley rats following intratracheal instillation of [3H]B[a]P [Weyand, E.H. and Bevan, D.R. (1986) Cancer Res., 46, 5655-5661]. In some experiments, cannulas were implanted in the bile duct of the animals prior to...

journal_title：Carcinogenesis

authors： Bevan DR,Weyand EH

更新日期：1988-11-01 00:00:00

abstract：:In order to test the controversially discussed hypothesis that oval cells are part of a liver stem cell compartment and can give rise to cholangiocellular as well as hepatocellular carcinomas in the course of liver carcinogenesis, we transfected an oval cell line established in our laboratory with an oncogenically act...

journal_title：Carcinogenesis

authors： Becker R,Lüthgens B,Oesch F,Dienes HP,Steinberg P

更新日期：1996-12-01 00:00:00

abstract：:Female inbred C3H/St mice infected with the Bittner Milk Particle, develop mammary adenocarcinoma with 27% incidence if maintained on a Torula Yeast diet supplemented with 1 ppm of selenium (organically bound, in yeast). Animals switched from the 1 ppm Se diet to a diet containing only 0.15 ppm Se after reaching the a...

journal_title：Carcinogenesis

authors： Schrauzer GN,McGinness JE,Kuehn K

更新日期：1980-02-01 00:00:00

abstract：:Vinyl carbamate epoxide (VCO) was found to possess strong electrophilic, mutagenic and carcinogenic activities. It reacted with water at 37 degrees C and pH 7.4 (phosphate buffer) to form glycolaldehyde and several related reducing compounds; none of these products were mutagenic for Salmonella typhimurium TA1535. Und...

journal_title：Carcinogenesis

authors： Park KK,Liem A,Stewart BC,Miller JA

更新日期：1993-03-01 00:00:00

abstract：:Male Sprague-Dawley rats were fed a cube diet containing 2.51 mmol/kg 3'-hydroxymethyl-N,N-dimethyl-4-aminoazobenzene (3'-CH2OH-DAB) for a period of 1 or 3 months. (This is the molar equivalent of 0.06% 3'-Me-DAB in the diet). The oral administration of 3'-CH2OH-DAB for 3 months resulted in a high incidence of liver t...

journal_title：Carcinogenesis

authors： Mori Y,Niwa T,Toyoshi K,Nagai H,Koda A,Kawada K,Ojima A,Takahashi Y

更新日期：1980-06-01 00:00:00

abstract：:Mutations in codon 61 of the Ha-ras proto-oncogene have been shown to occur with a high frequency in both spontaneous and carcinogen-induced liver tumours of the B6C3F1 mouse. In the present study we analysed the frequency and pattern of Ha-ras mutations in liver tumours in a different strain of mice, namely the CF1 m...

journal_title：Carcinogenesis

authors： Bauer-Hofmann R,Buchmann A,Wright AS,Schwarz M

更新日期：1990-10-01 00:00:00

abstract：:Junctional adhesion molecule-A (JAM-A) is preferentially concentrated at tight junctions and influences epithelial cell morphology and migration. Epithelial-to-mesenchymal transition (EMT) is the conversion process of epithelial cells into mesenchymal cells, and it plays an important role in the invasiveness and metas...

journal_title：Carcinogenesis

authors： Tian Y,Tian Y,Zhang W,Wei F,Yang J,Luo X,Zhou T,Hou B,Qian S,Deng X,Qiu Y,Yao K

更新日期：2015-01-01 00:00:00

abstract：:p90 Ribosomal S6 kinase (RSK) 4 is a serine-threonine kinase that belongs to the p90RSK family. RSK4 has been proposed as a tumor suppressor gene, related with anti-invasive activity, inhibition of the RAS-mitogen-activated protein kinase (MAPK) pathway and induction of senescence. Despite the related findings, little...

journal_title：Carcinogenesis

authors： López-Vicente L,Pons B,Coch L,Teixidó C,Hernández-Losa J,Armengol G,Ramon Y Cajal S

更新日期：2011-04-01 00:00:00

abstract：:Synergistic effects of dysregulation of the WNT/CTNNB1 and phosphatidylinositol 3-kinase (PI3K)/AKT pathways are thought to be important for the development and progression of many forms of cancer, including the granulosa cell tumor of the ovary. Sustained WNT/CTNNB1 signaling in Sertoli cells causes testicular degene...

journal_title：Carcinogenesis

authors： Boyer A,Paquet M,Laguë MN,Hermo L,Boerboom D

更新日期：2009-05-01 00:00:00

abstract：:The metabolism in mouse epidermis of benzo[b]fluoranthene (BbF) was studied. [3H]BbF was applied topically, mice were killed at various intervals, and metabolites were extracted from the epidermis and analyzed by h.p.l.c. The major metabolites were identified by comparisons to standards as 4-, 5-, and 6-hydroxyBbF. Su...

journal_title：Carcinogenesis

authors： Geddie JE,Amin S,Huie K,Hecht SS

更新日期：1987-11-01 00:00:00

abstract：:Carcinogenesis develops in stages that have been operationally defined as initiation, promotion and progression. Although morphological end points have been described for detection and quantitation of these stages, to date initiation has been assessed only in the context of clonal growth in response to certain promoti...

journal_title：Carcinogenesis

authors： Dragan YP,Campbell HA,Baker K,Vaughan J,Mass M,Pitot HC

更新日期：1994-11-01 00:00:00

abstract：:For a group of nine hydrocarbon and halogenated hydrocarbon epoxides, there is shown to be a good correlation between their abilities to inhibit epoxide hydrase and the quantity Vmin /Es, where Vmin is the most negative value of the molecule's electrostatic potential in the neighborhood of the epoxide oxygen and Es is...

journal_title：Carcinogenesis

authors： Politzer P,Laurence PR

更新日期：1984-06-01 00:00:00

abstract：:One hundred forty-seven female Sprague-Dawley rats were divided into 5 groups and at 60 days of age were treated i.g. with 5 mg of 7,12-dimethylbenzanthracene (DMBA) suspended in 1.0 ml of sesame oil. Selenium (Se), as selenium dioxide (SeO2), was administered in the drinking water to 4 of the 5 groups (30 rats/group)...

journal_title：Carcinogenesis

authors： Welsch CW,Goodrich-Smith M,Brown CK,Greene HD,Hamel EJ

更新日期：1981-01-01 00:00:00