DNA repair in human cells: quantitative assessment of bulky anti-BPDE-DNA adducts by non-competitive immunoassays.

abstract：:Some of the glutathione S-transferases (GSTs) are polymorphic and may play a role in lung cancer susceptibility. Our previous study in a French Caucasian study population suggested GSTM1 null genotype as a moderate risk factor for lung cancer. Here we extended the study to investigate the potential role of GSTT1 and G...

journal_title：Carcinogenesis

authors： Stücker I,Hirvonen A,de Waziers I,Cabelguenne A,Mitrunen K,Cénée S,Koum-Besson E,Hémon D,Beaune P,Loriot MA

更新日期：2002-09-01 00:00:00

abstract：:Understanding the molecular pathways that contribute to the development of tamoxifen resistance is a critical research priority as acquired tamoxifen resistance is the principal cause of poor prognosis and death of patients with originally good prognosis hormone-responsive breast tumors. In this report, we provide evi...

journal_title：Carcinogenesis

authors： Nagalingam A,Tighiouart M,Ryden L,Joseph L,Landberg G,Saxena NK,Sharma D

更新日期：2012-04-01 00:00:00

abstract：:Aberrant crypt foci (ACF) are microscopic surface abnormalities that are putative precursors to colorectal cancer (CRC). ACF exhibit similar histological and molecular abnormalities to adenomas and CRC and potentially represent useful biomarkers of cancer risk. Microsatellite instability (MSI) is one molecular abnorma...

journal_title：Carcinogenesis

authors： Greenspan EJ,Cyr JL,Pleau DC,Levine J,Rajan TV,Rosenberg DW,Heinen CD

更新日期：2007-04-01 00:00:00

abstract：:Use of supercritical carbon dioxide extraction in the analysis of smokeless tobacco for tobacco-specific N-nitrosamines revealed the presence of higher levels of 4-(methylnitros-amino)-1-(3-pyridyl)-1-butanone (NNK) than had been determined with conventional methods. Whether human saliva may be similarly capable of re...

journal_title：Carcinogenesis

authors： Prokopczyk B,Wu M,Cox JE,Hoffmann D

更新日期：1992-05-01 00:00:00

abstract：:Capsaicin, a pungent ingredient of red chili peppers, has been reported to possess antitumor activities. Here, we show that subtoxic doses of capsaicin effectively sensitize multiple malignant glioma cell lines to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptosis. Although TRAIL alone m...

journal_title：Carcinogenesis

authors： Kim JY,Kim EH,Kim SU,Kwon TK,Choi KS

更新日期：2010-03-01 00:00:00

abstract：:An important difference between chemical agents that induce oxidative damage in DNA and ionizing radiation is that radiation-induced damage is clustered locally on the DNA. Both modelling and experimental studies have predicted the importance of clustering of lesions induced by ionizing radiation and its dependence on...

journal_title：Carcinogenesis

authors： Prise KM,Pullar CH,Michael BD

更新日期：1999-05-01 00:00:00

abstract：:Modulation of microsome mediated benzo[a]pyrene (BP) metabolism by oleic and linoleic acids was studied. Oleic and linoleic acids did not influence the apparent activity of aryl hydrocarbon hydroxylase or the relative ratios of BP-7,8-dihydrodiol to phenol metabolites on high performance liquid chromatography. The tot...

journal_title：Carcinogenesis

authors： Nemoto N,Takayama S

更新日期：1983-10-01 00:00:00

abstract：:Quantum and molecular mechanical calculations were employed to examine the effect on binding energies and structure of methylation and ethylation at O6-guanine in double-stranded DNA. Ab initio quantum chemical calculations (STO-3G, 3-21G) were initially used to pseudo-optimize the structure of the 9-methyl derivative...

journal_title：Carcinogenesis

authors： Pedersen LG,Darden TA,Deerfield DW 2nd,Anderson MW,Hoel DG

更新日期：1988-09-01 00:00:00

abstract：:The O6-alkylguanine-DNA alkyltransferase (ATase) is known to overcome the effects of promutagenic, precarcinogenic O6-alkylguanine induced in DNA by exposure to environmental, chemotherapeutic and dietary alkylating agents. Within an organ, the cell type-specific responses to these agents may be attributed, in part, t...

journal_title：Carcinogenesis

authors： Wani G,Wani AA,D'Ambrosio SM

更新日期：1993-04-01 00:00:00

abstract：:The radical oxidation capability of several classes of iron minerals, including biotite, hematite, magnetite, minette, nemalite, pyrite, vivianite and two chrysotiles (asbestos), was investigated by using a double experimental approach. One involved the electron spin resonance spin-trapping measurement of organic radi...

journal_title：Carcinogenesis

authors： Berger M,de Hazen M,Nejjari A,Fournier J,Guignard J,Pezerat H,Cadet J

更新日期：1993-01-01 00:00:00

abstract：:Endocrine therapies, which inhibit estrogen receptor (ER)alpha signaling, are the most common and effective treatment for ERalpha-positive breast cancer. However, the use of these agents is limited by the frequent development of resistance. The cyclin-dependent kinase family member CRK7 (aka CRKRS) was identified from...

journal_title：Carcinogenesis

authors： Iorns E,Martens-de Kemp SR,Lord CJ,Ashworth A

更新日期：2009-10-01 00:00:00

abstract：:The nitrogen heterocycle dibenz[c,h]acridine (DB[c,h]ACR) and the enantiomers of the diastereomeric pair of bay-region 3,4-diol 1, 2-epoxides as well as other bay-region epoxides and dihydrodiol derivatives of this hydrocarbon have been evaluated for tumorigenicity on mouse skin and in the newborn mouse. On mouse skin...

journal_title：Carcinogenesis

authors： Chang RL,Wood AW,Kumar S,Lehr RE,Shirai N,Jerina DM,Conney AH

更新日期：2000-11-01 00:00:00

abstract：:Consumption of fruits and vegetables has been associated with a decrease in cancer incidence and cardiovascular disease, presumably caused by antioxidants. We designed a human intervention study to assess antioxidative and possible anti-genotoxic properties of fruit-borne antioxidants. We hypothesized that individuals...

journal_title：Carcinogenesis

authors： Wilms LC,Boots AW,de Boer VC,Maas LM,Pachen DM,Gottschalk RW,Ketelslegers HB,Godschalk RW,Haenen GR,van Schooten FJ,Kleinjans JC

更新日期：2007-08-01 00:00:00

abstract：:One of the most widely studied ultimate carcinogens, 7r,8t-dihydroxy-9t,10t-oxy-7,8,9,10-tetrahydrobenzo[a]pyrene (BPDE-I), is fairly stable in organic solvents but hydrolyses rapidly in the presence of water. Routine use of BPDE-I stock solutions involves multiple cycles of warming to room temperature and return to f...

journal_title：Carcinogenesis

authors： MacLeod MC,Lew L

更新日期：1988-11-01 00:00:00

abstract：:Two solid-phase extraction methods were developed for the determination of mutagenic heterocyclic aromatic amines in heated meat products. The copper phthalocyanine (CPC) tandem extraction was performed on coupled cartridges of diatomaceous earth and CPC-derivatized Sephasorb HP, followed by further clean-up on Sephas...

journal_title：Carcinogenesis

authors： Gross GA

更新日期：1990-09-01 00:00:00

abstract：:An increased neuroendocrine (NE) cell population in prostate cancer is associated with more aggressive disease and recurrence after androgen-deprivation therapy, although the mechanism responsible is unknown. In this study, we report that the treatment of LNCaP cells with epidermal growth factor (EGF) in the presence ...

journal_title：Carcinogenesis

authors： Cortés MA,Cariaga-Martinez AE,Lobo MV,Martín Orozco RM,Motiño O,Rodríguez-Ubreva FJ,Angulo J,López-Ruiz P,Colás B

更新日期：2012-06-01 00:00:00

abstract：:Recent studies have demonstrated that K-ras mutations in lung epithelial cells elicit inflammation that promotes carcinogenesis in mice (intrinsic inflammation). The finding that patients with chronic obstructive pulmonary disease (COPD), an inflammatory disease of the lung, have an increased risk of lung cancer after...

journal_title：Carcinogenesis

authors： Moghaddam SJ,Barta P,Mirabolfathinejad SG,Ammar-Aouchiche Z,Garza NT,Vo TT,Newman RA,Aggarwal BB,Evans CM,Tuvim MJ,Lotan R,Dickey BF

更新日期：2009-11-01 00:00:00

abstract：:It has been demonstrated that nuclear factor-kappa B (NF-κB), which is overactivated in hepatocellular carcinoma (HCC), plays important roles in the development of HCC. Recently, a group of dysregulated micro RNAs were reported to be involved in HCC progression. Further understanding of micro RNA-mediated regulation o...

journal_title：Carcinogenesis

authors： Li HP,Zeng XC,Zhang B,Long JT,Zhou B,Tan GS,Zeng WX,Chen W,Yang JY

更新日期：2013-11-01 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：:Dose response studies regarding the cancer initiating potential of fumonisin B1 (FB1) were conducted as a function of time. Feeding studies over 21 days indicated that FB1 induced a feed refusal effect in rats at dietary levels of 250, 500 and 750 mg FB1/kg diet. This effect was overcome after 14 days and the feed int...

journal_title：Carcinogenesis

authors： Gelderblom WC,Cawood ME,Snyman SD,Marasas WF

更新日期：1994-02-01 00:00:00

abstract：:A reduction in the ratio of tetraploid to diploid liver nuclei has been investigated as an early indicator of hepatocarcinogenesis in the rat using the liver carcinogen 3'-methyl-4-dimethylaminoazobenzene (3'M). In a dose ranging study 3'M was administered by gavage to rats at 5, 12.5 and 25 mg/kg for up to 10 weeks a...

journal_title：Carcinogenesis

authors： Styles J,Elliott BM,Lefevre PA,Robinson M,Pritchard N,Hart D,Ashby J

更新日期：1985-01-01 00:00:00

abstract：:Expression of glutathione S-transferase placental form (GST-pi) in human lung carcinoma tissue taken at autopsy or biopsy was investigated immunohistochemically. All of 34 cases of squamous cell carcinomas, including poorly, moderately and well-differentiated examples were shown to stain positively for GST-pi. Poorly ...

journal_title：Carcinogenesis

authors： Eimoto H,Tsutsumi M,Nakajima A,Yamamoto K,Takashima Y,Maruyama H,Konishi Y

更新日期：1988-12-01 00:00:00

abstract：:In light of clinical and biological evidence that bile constituents exert preventive effects against colorectal cancer, we evaluated the influence of oral bilirubin and sodium taurocholate (NaTC) on intestinal tumor formation in APC(Min/+) mice. Mice received bilirubin and/or bovine serum albumin (BSA) and NaTC in the...

journal_title：Carcinogenesis

authors： Smith DL,Keshavan P,Avissar U,Ahmed K,Zucker SD

更新日期：2010-06-01 00:00:00

abstract：:Heterocyclic aromatic amines (HAAs), formed during the cooking of foods, are known to induce tumours in rodent bioassays and may thus contribute to human cancer risk. We tested six HAAs in a morphological transformation assay and in three in vitro genotoxicity assays. The morphological transforming abilities of HAAs w...

journal_title：Carcinogenesis

authors： Pfau W,Martin FL,Cole KJ,Venitt S,Phillips DH,Grover PL,Marquardt H

更新日期：1999-04-01 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：:Peroxisome proliferator activated receptor(alpha) (PPARalpha) mediates the liver's responses to peroxisome proliferator compounds. These responses include induction of specific hepatic enzymes, peroxisome proliferation and hepatocyte proliferation. PPARalpha null mice, which lack receptor in all cells of the body, do ...

journal_title：Carcinogenesis

authors： Weglarz TC,Sandgren EP

更新日期：2004-01-01 00:00:00

abstract：:Propylene oxide, a widely used monofunctional alkylating agent, has been shown to be genotoxic in in vitro test systems and induces tumors in the nasal tissues of experimental animals. Propylene oxide, like related alkylating agents, forms several different adducts with DNA bases, but predominantly at the 7-position o...

journal_title：Carcinogenesis

authors： Plna K,Nilsson R,Koskinen M,Segerbäck D

更新日期：1999-10-01 00:00:00

abstract：:Tuberin (protein encodes by tuberous sclerosis complex 2, Tsc2) deficiency is associated with the decrease in the DNA repair enzyme 8-oxoG-DNA glycosylase (OGG1) in tumour kidney of tuberous sclerosis complex (TSC) patients. The purpose of this study was to elucidate the mechanisms by which tuberin regulates OGG1. The...

journal_title：Carcinogenesis

authors： Habib SL,Bhandari BK,Sadek N,Abboud-Werner SL,Abboud HE

更新日期：2010-11-01 00:00:00

abstract：:Arsenicals are epidemiologically significant chemicals in relation to induction of urinary bladder cancer in man. In the present study, we investigated the dose-dependent promotion potential of dimethylarsinic acid (DMA), a major metabolite of inorganic arsenicals in mammals, for rat urinary bladder carcinogenesis. In...

journal_title：Carcinogenesis

authors： Wanibuchi H,Yamamoto S,Chen H,Yoshida K,Endo G,Hori T,Fukushima S

更新日期：1996-11-01 00:00:00

abstract：:As rat tracheal epithelial cells progress from a normal to a neoplastic phenotype there are systematic changes in their ability to produce and activate latent transforming growth factor type beta (TGF-beta) as well as systematic changes in their response to this growth factor. Using a TGF-beta radioreceptor binding co...

journal_title：Carcinogenesis

authors： Terzaghi-Howe M

更新日期：1989-06-01 00:00:00