Partial characterization of two major liver I-compounds as unstable adducts which are readily hydrolyzed to unmodified guanine nucleotides.

abstract：:A decreased incidence of squamous cell carcinoma of the head and neck (SCCHN) associated with fruit and vegetable intake may act through chemopreventive compounds, which may be more available to persons homozygous for the deletion genotypes of the glutathione S-transferase (GST). We evaluated interactions between frui...

journal_title：Carcinogenesis

authors： Gaudet MM,Olshan AF,Poole C,Weissler MC,Watson M,Bell DA

更新日期：2004-05-01 00:00:00

abstract：:In the previous 500 2-year chemical bioassays within the National Toxicology Program, large intestinal tumors (cecal carcinomas) related to chemical exposure have not been observed in B6C3F1 mice. The recently completed o-nitrotoluene study provided the first cecal tumor response and an opportunity to evaluate the mor...

journal_title：Carcinogenesis

authors： Sills RC,Hong HL,Flake G,Moomaw C,Clayton N,Boorman GA,Dunnick J,Devereux TR

更新日期：2004-04-01 00:00:00

abstract：:Nitric oxide donating aspirin (NO-ASA), consisting of a traditional ASA to which a NO-releasing moiety is covalently attached, is a promising chemopreventive agent against colon cancer. Its mechanism of action is not fully delineated. Here we examined its effect on the expression of the nuclear receptor PPARdelta, who...

journal_title：Carcinogenesis

authors： Ouyang N,Williams JL,Rigas B

更新日期：2006-02-01 00:00:00

abstract：:Methylation of the non-carcinogen 15,16-dihydrocyclopenta[a]phenanthren-17-one (CPP-17-one) at the bay region to form 11-CH3-CPP-17-one confers carcinogenic potential. In the present study we have investigated the in vitro metabolism and mutagenicity of the methylated compound by hepatic microsomal preparations from r...

journal_title：Carcinogenesis

authors： Boyd GW,Young RJ,Harvey RG,Coombs MM,Ioannides C

更新日期：1993-09-01 00:00:00

abstract：:The purpose of this work was to study the relative activities and stabilities of phase-I and phase-II drug metabolizing enzymes in incubation mixtures used in vitro genotoxicity testing in order to optimize the conditions of the assay, increase sensitivity and eliminate false negative results. Cytochrome P-450, NADPH-...

journal_title：Carcinogenesis

authors： Paolini M,Tonelli F,Bauer C,Corsi C,Bronzetti G

更新日期：1987-09-01 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：: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：:Environmental contributions to cancer development are widely accepted, but only a fraction of all pertinent exposures have probably been identified. Traditional toxicological approaches to the problem have largely focused on the effects of individual agents at singular endpoints. As such, they have incompletely addres...

journal_title：Carcinogenesis

authors： Robey RB,Weisz J,Kuemmerle NB,Salzberg AC,Berg A,Brown DG,Kubik L,Palorini R,Al-Mulla F,Al-Temaimi R,Colacci A,Mondello C,Raju J,Woodrick J,Scovassi AI,Singh N,Vaccari M,Roy R,Forte S,Memeo L,Salem HK,Amedei A,

更新日期：2015-06-01 00:00:00

abstract：:Telomerase contributes to the infinite replicative potential of cancer cells by conferring proliferation and survival through the regulation of growth factors and apoptotic proteins. Although it is generally known that the phytoestrogen, genistein, has telomerase-repressing and anti-proliferative effects on various ca...

journal_title：Carcinogenesis

authors： Chau MN,El Touny LH,Jagadeesh S,Banerjee PP

更新日期：2007-11-01 00:00:00

abstract：:Groups of male and female IF strain mice were fed a diet containing either 0.5% or 1.0% paracetamol for up to 18 months. Among male mice fed the higher dose, the total liver cell tumour incidence was 87%, 21.7% developing hepatocellular carcinomas: both yields were statistically significant. The corresponding incidenc...

journal_title：Carcinogenesis

authors： Flaks A,Flaks B

更新日期：1983-01-01 00:00:00

abstract：:Basal cell carcinoma (BCC) of the skin is the most common neoplasm among the Caucasian population of the Western world. Inflammation may result in oxidative stress and contribute to promotion and progression of tumors, including BCC. The role of cytokines, which are inflammatory modulators, in the biology of tumors ha...

journal_title：Carcinogenesis

authors： Rizzato C,Canzian F,Rudnai P,Gurzau E,Stein A,Koppova K,Hemminki K,Kumar R,Campa D

更新日期：2011-12-01 00:00:00

abstract：:Tobacco smoking and occupational exposure are major risk factors of bladder cancer via exposure to polycyclic aromatic hydrocarbons (PAHs) and aromatic amines, which lead to oxidative stress and DNA damage. Several enzymes, which play key roles in oxidative stress are polymorphic in humans. Myeloperoxidase (MPO) produ...

journal_title：Carcinogenesis

authors： Hung RJ,Boffetta P,Brennan P,Malaveille C,Gelatti U,Placidi D,Carta A,Hautefeuille A,Porru S

更新日期：2004-06-01 00:00:00

abstract：:Recently, TWIST, a basic helix-loop-helix transcription factor, is suggested to be an oncogene because of its over-expression in many types of human cancer and its positive role in promoting cell survival. The aim of this study was to investigate the role of TWIST on the growth of human epithelial cells. Using two imm...

journal_title：Carcinogenesis

authors： Kwok WK,Ling MT,Yuen HF,Wong YC,Wang X

更新日期：2007-12-01 00:00:00

abstract：:Epidemiological evidence has suggested that consumption of a diet rich in cruciferous vegetables reduces the risk of several types of cancers and chronic degenerative diseases. In particular, broccoli sprouts are a convenient and rich source of the glucosinolate, glucoraphanin, which can release the chemopreventive ag...

journal_title：Carcinogenesis

authors： Kensler TW,Ng D,Carmella SG,Chen M,Jacobson LP,Muñoz A,Egner PA,Chen JG,Qian GS,Chen TY,Fahey JW,Talalay P,Groopman JD,Yuan JM,Hecht SS

更新日期：2012-01-01 00:00:00

abstract：BACKGROUND:Variations in genetic mutations in pancreatic carcinoma between different geographical regions have not been studied extensively, especially in developing countries where pancreatic cancer is relatively rare. METHODS:We studied the molecular pathology of 54 pancreatic adenocarcinomas from Egyptian patients ...

journal_title：Carcinogenesis

authors： Soliman AS,Lo AC,Banerjee M,El-Ghawalby N,Khaled HM,Bayoumi S,Seifeldin IA,Abdel-Aziz A,Abbruzzese JL,Greenson JK,Hamilton SR

更新日期：2007-08-01 00:00:00

abstract：:Tumor induction with chronic feeding of methyl-donor-deficient diets has been well established; however, the biochemical and molecular mechanisms which predipose to tumorigenesis in this model are still not well understood. The purpose of the present investigation was to assess DNA damage and altered nucleotide metabo...

journal_title：Carcinogenesis

authors： James SJ,Yin L

更新日期：1989-07-01 00:00:00

abstract：:Progression of hepatic neoplasia was assessed in medaka (Oryzias latipes) following aqueous exposure to diethylnitrosamine (DEN). Larvae (2 weeks old) were exposed to 350 or 500 p.p.m. DEN for 48 h, while adults (3-6 months old) were exposed to 50 p.p.m. DEN for 5 weeks. Fish were maintained as long as possible to det...

journal_title：Carcinogenesis

authors： Okihiro MS,Hinton DE

更新日期：1999-06-01 00:00:00

abstract：:The role of O-GlcNAc transferase (OGT) in gene regulation and tumor invasion is poorly understood. Here, we have identified several previously undiscovered OGT-interacting proteins, including the PRMT5/WDR77 complex, the PRC2 complex, the ten-eleven translocation (TET) family, the CRL4B complex and the nucleosome remo...

journal_title：Carcinogenesis

authors： Gao J,Yang Y,Qiu R,Zhang K,Teng X,Liu R,Wang Y

更新日期：2018-10-08 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：:Induction of glutathione S-transferase (GST) enzymes can increase detoxification of carcinogens and reduce carcinogen-induced mutagenesis and tumorigenesis. To determine if the anticarcinogen ellagic acid induces cellular enzymes which detoxify carcinogens, we examined the effect of ellagic acid on the expression of g...

journal_title：Carcinogenesis

authors： Barch DH,Rundhaugen LM,Pillay NS

更新日期：1995-03-01 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：:Skin is a major target of carcinogenic trivalent arsenic (arsenite, As3+). It has been thought that cell proliferation is one of the central events involved in the carcinogenic effect of arsenite. Cyclin D1, a nuclear protein playing a pivotal role in cell proliferation and cell cycle transition from G1 to S phases, h...

journal_title：Carcinogenesis

authors： Ouyang W,Li J,Ma Q,Huang C

更新日期：2006-04-01 00:00:00

abstract：:Oesophageal squamous cell carcinoma (OSCC) has a high incidence in southern Africa and a poor prognosis. Limited information is available on the contribution of genetic variants in susceptibility to OSCC in this region. However, recent genome-wide association studies have identified multiple susceptibility loci in Asi...

journal_title：Carcinogenesis

authors： Chen WC,Bye H,Matejcic M,Amar A,Govender D,Khew YW,Beynon V,Kerr R,Singh E,Prescott NJ,Lewis CM,Babb de Villiers C,Parker MI,Mathew CG

更新日期：2019-06-10 00:00:00

abstract：:Dietary resistant starch (RS), as a high amylose maize starch (HAMS), prevents dietary protein-induced colonocyte genetic damage in rats, possibly through the short-chain fatty acid (SCFA) butyrate produced by large bowel bacterial RS fermentation. Increasing butyrate availability may improve colonic health and dietar...

journal_title：Carcinogenesis

authors： Bajka BH,Clarke JM,Cobiac L,Topping DL

更新日期：2008-11-01 00:00:00

abstract：:Colorectal cancer (CRC) is the third most common cancer worldwide. Chronic inflammation appears to enhance the risk of CRC. Emerging evidence has suggested that epigenetic mechanisms play an important role in CRC. Aspirin [acetylsalicylic acid (ASA)] has been shown to prevent CRC; however, the epigenetic mechanisms of...

journal_title：Carcinogenesis

authors： Guo Y,Liu Y,Zhang C,Su ZY,Li W,Huang MT,Kong AN

更新日期：2016-06-01 00:00:00

abstract：:We measured the mutation frequency and spectrum induced by exposure of the mutation reporter plasmid pSP189 in vivo to phorbol myristate acetate (PMA)-activated human polymorphonuclear leukocytes (PMNs). The mutation frequency induced in the supF tRNA gene of pSP189 transfected into human Ad293 cells by a 30 min expos...

journal_title：Carcinogenesis

authors： Akman SA,Sander F,Garbutt K

更新日期：1996-10-01 00:00:00

abstract：:Colorectal cancer (CRC) is the fourth leading cause of cancer mortality worldwide. Genome-wide association studies (GWAS) identified more than 50 CRC loci. However, most of the previous studies were conducted in European population, and host genetic factors among Japanese population are largely remained to be identifi...

journal_title：Carcinogenesis

authors： Tanikawa C,Kamatani Y,Takahashi A,Momozawa Y,Leveque K,Nagayama S,Mimori K,Mori M,Ishii H,Inazawa J,Yasuda J,Tsuboi A,Shimizu A,Sasaki M,Yamaji T,Sawada N,Iwasaki M,Tsugane S,Naito M,Wakai K,Koyama T,Takezaki T

更新日期：2018-05-03 00:00:00

abstract：:MicroRNA deregulation and pathway alterations have been implicated in nasopharyngeal carcinoma (NPC), a highly invasive and metastatic cancer widely prevalent in Southern China. In this study, we report that miR-9 is commonly downregulated in NPC specimens and NPC cell lines with important functional consequences. The...

journal_title：Carcinogenesis

authors： Lu J,Luo H,Liu X,Peng Y,Zhang B,Wang L,Xu X,Peng X,Li G,Tian W,He ML,Kung H,Li XP

更新日期：2014-03-01 00:00:00

abstract：:Covalent binding of [7-3H]styrene (S) to DNA in vivo was measured and evaluated in a quantitative manner in order to investigate whether DNA adduct formation could form a mechanistic basis for tumor induction in a carcinogenicity bioassay. [7-3H]S was administered by inhalation in a closed chamber to male and female C...

journal_title：Carcinogenesis

authors： Cantoreggi S,Lutz WK

更新日期：1993-03-01 00:00:00

abstract：:Base excision repair (BER) corrects DNA damage caused by oxidative stress and chronic inflammation, putative risk factors for cancer. To understand the relationship between genetic variation in BER genes and risk of biliary tract cancer and biliary stones, we examined non-synonymous polymorphisms in three key BER gene...

journal_title：Carcinogenesis

authors： Huang WY,Gao YT,Rashid A,Sakoda LC,Deng J,Shen MC,Wang BS,Han TQ,Zhang BH,Chen BE,Rosenberg PS,Chanock SJ,Hsing AW

更新日期：2008-01-01 00:00:00