Induction of DNA repair synthesis in human monocytes/B-lymphocytes compared with T-lymphocytes after exposure to N-acetoxy-N-acetylaminofluorene and dimethylsulfate in vitro.

abstract：:Breast cancer incidence is increased in women with both high and low birth weight. The latter is also associated with hyperglycaemia, insulin resistance and type-2 diabetes, each of which independently increases breast cancer risk. We showed previously in our model of poor early-growth that pregnancy estradiol levels ...

journal_title：Carcinogenesis

authors： Fernandez-Twinn DS,Ekizoglou S,Gusterson BA,Luan J,Ozanne SE

更新日期：2007-03-01 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：:Forty-two compounds belonging to various chemical groups have been tested for their ability to suppress formation of aflatoxin B1--DNA adduct mediated by microsome in vitro. While many of these compounds have either marginal or no modulating effect, some have been identified as effective inhibitors. The strong inhibit...

journal_title：Carcinogenesis

authors： Bhattacharya RK,Firozi PF,Aboobaker VS

更新日期：1984-10-01 00:00:00

abstract：:Hepatocellular carcinoma (HCC) is the fifth most common malignancy caused by environmental and genetic factors. MicroRNAs (miRNAs) are a class of short non-coding RNAs with posttranscriptional regulatory functions. They participate in diverse biological pathways and function as gene regulators. Genetic polymorphisms i...

journal_title：Carcinogenesis

authors： Gao Y,He Y,Ding J,Wu K,Hu B,Liu Y,Wu Y,Guo B,Shen Y,Landi D,Landi S,Zhou Y,Liu H

更新日期：2009-12-01 00:00:00

abstract：:Spontaneous and hepatocarcinogen (2-nitropropane, 2-NP)-induced levels of 8-hydroxy-2'-deoxyguanosine (oh8dG) in the nuclear DNA of regenerating liver [24, 48, 72 h and 7 days after partial hepatectomy (PH)] of male Sprague-Dawley rats were analysed for the verification of a hypothesis that the high susceptibility of ...

journal_title：Carcinogenesis

authors： Adachi S,Kawamura K,Takemoto K

更新日期：1994-03-01 00:00:00

abstract：:Benzo(a]pyrene was metabolized in liver cell lines derived from BC-IV and BD-IV rats which included several chemically-transformed lines (IAR-6-1; IAR-19; IAR-28), one spontaneous transformant (IAR-27) as well as one non-malignant line (IAR-20). Cultures were treated with tritiated benzo[a]pyrene over a 5-day period. ...

journal_title：Carcinogenesis

authors： Selkirk JK,MacLeod MC,Kuroki T,Drevon C,Piccoli C,Montesano R

更新日期：1982-01-01 00:00:00

abstract：:Current procedures for diagnosis and biomarker examination of colorectal cancer (CRC) are invasive and unpleasant. There is a great need to identify sensitive and specific biomarkers for early diagnosis of CRC. Circulating microRNAs (miRNAs) are promising molecular markers for CRC prediction. We performed a comprehens...

journal_title：Carcinogenesis

authors： Du M,Liu S,Gu D,Wang Q,Zhu L,Kang M,Shi D,Chu H,Tong N,Chen J,Adams TS,Zhang Z,Wang M

更新日期：2014-12-01 00:00:00

abstract：:Malondialdehyde (MDA), a product of lipid peroxidation, causes mutations in bacterial and mammalian cells and cancer in rats. MDA reacts with deoxynucleosides in vitro and the monomeric adduct of MDA with deoxyguanosine (M1G-dR) is the major adduct. M1G-dR has been detected in rat and human liver. Random mutagenesis s...

journal_title：Carcinogenesis

authors： Chaudhary AK,Reddy GR,Blair IA,Marnett LJ

更新日期：1996-05-01 00:00:00

abstract：:The hepatitis B virus X protein (HBx) has pleiotropic biological effects, which underlies its potential role in cell transformation. However, its involvement in hepatic fibrosis remains unclear. In this study, we wanted to clarify, in vivo, the role of HBx protein in the development of liver fibrosis. Mice transgenic ...

journal_title：Carcinogenesis

authors： Ahodantin J,Lekbaby B,Bou Nader M,Soussan P,Kremsdorf D

更新日期：2020-05-14 00:00:00

abstract：:17beta-estradiol (E2), estrone and diethylstilbestrol (DES) had no effect on nuclear and nucleolar RNA synthesis in vitro. However, after reacting with dimethyldioxirane (DMDO), a versatile epoxide-forming oxidant, these estrogens were able to inhibit and in a dose-dependent manner nuclear and nucleolar RNA synthesis ...

journal_title：Carcinogenesis

authors： Yu FL,Bender W

更新日期：1996-09-01 00:00:00

abstract：:Patients with familial adenomatous polyposis (FAP) have a high risk of developing duodenal adenomas and carcinomas. The distribution of these neoplasms resembles mucosal exposure to bile, suggesting that bile may play a role in adenoma development. Our previous results, using DNA adducts detected by 32P-postlabelling ...

journal_title：Carcinogenesis

authors： Scates DK,Spigelman AD,Nugent KP,Phillips RK,Venitt S

更新日期：1993-06-01 00:00:00

abstract：:The denitrosation of a novel nitrosourea, 1-(2-chloroethyl)-3-[(2-dimethylaminosulfonyl)-ethyl]-1-nitrosoure a, tauromustine (TCNU), has been investigated in liver cytosol from various species and with a pool of cytosolic rat liver glutathione transferases (GSTs). In addition, the denitrosation of related nitrosoureas...

journal_title：Carcinogenesis

authors： Tuvesson H,Gunnarsson PO,Seidegård J

更新日期：1993-06-01 00:00:00

abstract：:The mutagenicity of the lipid peroxidation product, malondialdehyde (MDA), was measured in the lacZ alpha forward mutation assay using a recombinant M13 phage, M13MB102. Single-stranded M13MB102 DNA was reacted with MDA at neutral pH and the modified DNA was transformed into strains of Escherichia coli induced for the...

journal_title：Carcinogenesis

authors： Benamira M,Johnson K,Chaudhary A,Bruner K,Tibbetts C,Marnett LJ

更新日期：1995-01-01 00:00:00

abstract：:An in vivo method for assessment of DNA adduct formation and unscheduled DNA synthesis (UDS) in the esophagus of rats was devised. Small ventral incisions were made in the neck and upper abdomen regions of 6 week old F344 rats and ligation of the esophagus with thread at the two extreme ends performed to make an esoph...

journal_title：Carcinogenesis

authors： Qin XS,Nakatsuru Y,Kohyama K,Ishikawa T

更新日期：1990-02-01 00:00:00

abstract：:O-Methylation of catecholestrogens catalyzed by catechol-O-methyltransferase provides a major route for the rapid metabolic clearance of these steroids. However, the metabolic clearance rate of 4-hydroxyestradiol (4-OH-E2) is considerably lower than that of 2-hydroxyestradiol, although 2- and 4-hydroxycatecholestrogen...

journal_title：Carcinogenesis

authors： Roy D,Weisz J,Liehr JG

更新日期：1990-03-01 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：:The role of urinary pH and Na+ concentration on the bladder carcinogenesis of o-phenylphenol (OPP) was examined in male F344 rats. The rats were given powdered diet containing 2% sodium o-phenylphenate (OPP-Na, group 1), 1.25% OPP plus 0.64% NaHCO3 (group 2), 1.25% OPP plus 0.32% NaHCO3 (group 3), 1.25% OPP plus 0.16%...

journal_title：Carcinogenesis

authors： Fukushima S,Inoue T,Uwagawa S,Shibata MA,Ito N

更新日期：1989-09-01 00:00:00

abstract：:Supplementation by beta-carotene has unexpectedly appeared to increase lung cancer risk among smokers. In order to explain this it has been suggested that at high serum levels of beta-carotene, prooxidant characteristics of beta-carotene may become manifest, yielding reactive oxygen species (ROS) and inducing oxidativ...

journal_title：Carcinogenesis

authors： Kleinjans JC,van Herwijnen MH,van Maanen JM,Maas LM,de Kok TM,Moonen HJ,Briedé JJ

更新日期：2004-07-01 00:00:00

abstract：:Dihydrodiol dehydrogenase (DD) has been shown to catalyze the oxidation of (+/-)-trans-7,8-dihydroxy-7,8-dihydrobenzo [a]pyrene (BP-diol) to yield benzo[a]pyrene-7,8-dione (BPQ) in uninduced fortified rat liver S100 fractions but the formation of BPQ has not been observed in whole cells. In these studies [3H]BP-diol w...

journal_title：Carcinogenesis

authors： Flowers-Geary L,Harvey RG,Penning TM

更新日期：1995-11-01 00:00:00

abstract：:Apigenin is a plant flavonoid which has been shown to significantly inhibit UV-induced mouse skin tumorigenesis when applied topically, and may represent an alternative sunscreen agent in humans. We have investigated the molecular mechanism(s) by which apigenin inhibits skin tumorigenesis. Initial studies examined the...

journal_title：Carcinogenesis

authors： Lepley DM,Li B,Birt DF,Pelling JC

更新日期：1996-11-01 00:00:00

abstract：:Benzoquinones (BQ) are genotoxic species that stem from metabolism of phenolic compounds. We have developed a method for measuring adducts of 1,2- and 1,4-benzoquinone (1,2-BQ and 1,4-BQ) with cysteine residues of hemoglobin (Hb) and albumin (Alb). The method employs a reductive catalyst (Raney nickel) to selectively ...

journal_title：Carcinogenesis

authors： McDonald TA,Waidyanatha S,Rappaport SM

更新日期：1993-09-01 00:00:00

abstract：:Inbred male Leeds rats were administered either the liver carcinogen N-nitrosopiperidine or the non-carcinogen 2,2',6,6'-tetramethyl-N-nitrosopiperidine in their drinking water at a concentration of 0.02%. Treatment was continued until the animals were killed, at 12 or 28 days, when their hepatic tissues were removed ...

journal_title：Carcinogenesis

authors： Flaks B,Challis BC

更新日期：1981-01-01 00:00:00

abstract：:This study analyzes the mechanism by which the tumor promoter 12-0-tetradecanoyl-phorbol 13-acetate (TPA) inhibits binding of epidermal growth factor (EGF) to its membrane receptors in HeLa cells. Kinetic studies indicate that inhibition of EGF binding occurs within a few minutes after exposure of cells to TPA; delaye...

journal_title：Carcinogenesis

authors： Lee LS,Weinstein IB

更新日期：1980-08-01 00:00:00

abstract：:The role of nitric oxide (NO) in colon cancer remains controversial. Inducible nitric oxide synthase (iNOS) has been reported to be up regulated and down regulated in colorectal cancer in both animal models and patient tissue samples. Cyclooxygenase-2 (COX-2) is important in colorectal carcinogenesis but its relations...

journal_title：Carcinogenesis

authors： Liu Q,Chan ST,Mahendran R

更新日期：2003-04-01 00:00:00

abstract：:The administration of 4-hydroxybutyl(butyl)nitrosamine (OH-BBN) to male B6D2F1 mice yielded a high incidence of large palpable urinary bladder cancers. Since prior studies demonstrated chemopreventive effects of non-steroidal anti-inflammatory drugs (NSAIDs), we further explored the efficacy of the NSAID indomethacin ...

journal_title：Carcinogenesis

authors： Lubet RA,Huebner K,Fong LY,Altieri DC,Steele VE,Kopelovich L,Kavanaugh C,Juliana MM,Soong SJ,Grubbs CJ

更新日期：2005-03-01 00:00:00

abstract：:The effect of whole body ionising radiation from a linear accelerator on rat tissue O6-methylguanine (O6-meG) methyltransferase (MT) activity has been assessed using an assay which measures the transfer of 3H-radioactivity from 3H-methylated substrate DNA to protein. The maximal effect occurred 2 days after a 1 krad d...

journal_title：Carcinogenesis

authors： Margison GP,Butler J,Hoey B

更新日期：1985-12-01 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：:Cultured human epidermal cells which require no feeder layer were used to study metabolism of benzo[a]pyrene (BP) and DNA adduct formation. The cultures were prepared from a single cell suspension and maintained at a pH of 5.9--6.2. At 2 microM BP some cell toxicity was observed, and substantial cell death occurred at...

journal_title：Carcinogenesis

authors： Theall G,Eisinger M,Grunberger D

更新日期：1981-01-01 00:00:00

abstract：:Intratumor heterogeneity (ITH) plays an important role in tumor development, metastases, recurrence and has impact on clinical diagnosis, therapeutic responses. In this study, we used mutant-allele tumor heterogeneity (MATH) through whole-exome sequencing data to evaluate ITH in early stage diffuse large B-cell lympho...

journal_title：Carcinogenesis

authors： Wang Y,Feng W,Liu P

更新日期：2019-11-25 00:00:00

abstract：:Diethylstilbestrol (DES), a synthetic stilbene estrogen, is a potent development toxin and carcinogen in humans and rodents. A number of 32P-postlabeling studies suggest that genotoxic effects of DES substantially contribute to these biological effects. The mechanisms involved in DES-mediated genotoxicity are not comp...

journal_title：Carcinogenesis

authors： Moorthy B,Liehr J,Randerath E,Randerath K

更新日期：1995-11-01 00:00:00