The role of specific DNA adducts in the induction of micronuclei by N-hydroxy-2-acetylaminofluorene in rat liver in vivo.

abstract：:An intrasanguineous host-mediated assay was used to establish the mutagenic potential of a series of dialkylnitrosamines to E. coli K12/343/113 in the liver and spleen of mice. For calibrating purposes, dose- and time-dependent kinetics of mutation induction by the model compound diethylnitrosamine in this assay was d...

journal_title：Carcinogenesis

authors： Kerklaan P,Mohn G,Bouter S

更新日期：1981-01-01 00:00:00

abstract：:The landscape of HPV infection in racial/ethnic subgroups of head and neck cancer (HNC) patients has not been evaluated carefully. In this study, a meta-analysis examined the prevalence of HPV in HNC patients of African ancestry. Additionally, a pooled analysis of subject-level data was also performed to investigate H...

journal_title：Carcinogenesis

authors： Ragin C,Liu JC,Jones G,Shoyele O,Sowunmi B,Kennett R,Groen HJ,Gibbs D,Blackman E,Esan M,Brandwein MS,Devarajan K,Bussu F,Chernock R,Chien CY,Cohen MA,Samir EM,Mikio S,D'Souza G,Funchain P,Eng C,Gollin SM,Hong

更新日期：2017-02-01 00:00:00

abstract：:The lipoxygenase catalyzed epoxidation of 7,8-dihydroxy-7,8-dihydrobenzo[a]pyrene (BP-7,8-diol) was examined. Epoxidation of the BP-7,8-diol was catalyzed by 5- and 15-lipoxygenase in the presence of either arachidonic acid, gamma-linolenic acid, or 15-hydroperoxyeicosatetraenoic acid (15-HPETE). The anti-9,10-epoxy-7...

journal_title：Carcinogenesis

authors： Hughes MF,Chamulitrat W,Mason RP,Eling TE

更新日期：1989-11-01 00:00:00

abstract：:Many chemoradiation therapies cause DNA damage through oxidative stress. An important cellular mechanism that protects cells against oxidative stress involves DNA repair. One of the primary DNA repair mechanisms for oxidative DNA damage is base excision repair (BER). BER involves the tightly coordinated function of fo...

journal_title：Carcinogenesis

authors： Zhang H,Mizumachi T,Carcel-Trullols J,Li L,Naito A,Spencer HJ,Spring PM,Smoller BR,Watson AJ,Margison GP,Higuchi M,Fan CY

更新日期：2007-08-01 00:00:00

abstract：:p53-upregulated modulator of apoptosis (PUMA) plays an essential role in p53-dependent apoptosis following DNA damage. PUMA also mediates apoptosis independent of p53. In this study, we investigated the role and mechanism of PUMA induction in response to serum starvation in p53-deficient cancer cells. Following serum ...

journal_title：Carcinogenesis

authors： Ming L,Sakaida T,Yue W,Jha A,Zhang L,Yu J

更新日期：2008-10-01 00:00:00

abstract：:Wildtype 10T1/2 cells and 42 clonally derived morphologically transformed 10T1/2 cell lines were evaluated for expression of p53 mRNA and protein. Wildtype 10T1/2 cells expressed detectable levels of p53 mRNA and multiple immunologically distinct forms of the p53 protein, including both PAb240- and PAb246-reactive con...

journal_title：Carcinogenesis

authors： Coleman WB,Grisham JW,Smith GJ

更新日期：1994-02-01 00:00:00

abstract：:Diallyl disulfide (DADS), a sulfur compound from garlic has been shown to exert many biological effects: induction of carcinogen detoxication, inhibition of tumor cell proliferation, etc. These effects are consistent with its anticarcinogenic properties in animal models and could account for garlic protective effects ...

journal_title：Carcinogenesis

authors： Huard C,Druesne N,Guyonnet D,Thomas M,Pagniez A,Le Bon AM,Martel P,Chaumontet C

更新日期：2004-01-01 00:00:00

abstract：:Glycidyl ethers are reactive epoxides used as components of a variety of epoxy materials. These compounds are known to cause allergic reactions, but since they are generally also genotoxic it would be of interest to evaluate the risk for induction of such effects. Reaction products of allyl glycidyl ether with nucleic...

journal_title：Carcinogenesis

authors： Plna K,Segerbäck D,Schweda EK

更新日期：1996-07-01 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

abstract：:Wnt/β-Catenin signaling dysregulation is involved in tumorigenesis. Furthermore, epigenetic modification of the Dickkopf (DKK) family (DKK1-DKK4) has been shown to be important in Wnt signaling regulation. In this study, the role of DKK2, a Wnt antagonist, in epithelial ovarian cancer (EOC) was evaluated by examining ...

journal_title：Carcinogenesis

authors： Zhu J,Zhang S,Gu L,Di W

更新日期：2012-12-01 00:00:00

abstract：:The steroid hormone 1,25-dihydroxyvitamin D(3), [1,25(OH)(2)D(3), calcitriol], the active metabolite of vitamin D, exerts pleiotropic antitumor effects against several malignancies. However, the clinical use of this hormone is limited by hypercalcemia. 25-Hydroxyvitamin D(3), the prohormone of 1,25(OH)(2)D(3), is hydr...

journal_title：Carcinogenesis

authors： Schwartz GG,Eads D,Rao A,Cramer SD,Willingham MC,Chen TC,Jamieson DP,Wang L,Burnstein KL,Holick MF,Koumenis C

更新日期：2004-06-01 00:00:00

abstract：:Autophagy is an evolutionarily conserved mechanism to protect the cells from unfavorable environmental conditions. Inhibition of autophagy has been contemplated as a novel strategy to enhance anticancer efficacy of existing chemotherapeutic agents. We previously reported that pulsatilla saponin D (PSD) was a potent au...

journal_title：Carcinogenesis

authors： Wang K,Tu Y,Wan JB,Chen M,He C

更新日期：2020-07-10 00:00:00

abstract：:The effect of exposing mice to both a chemical carcinogen and leukemia virus with and without an inhibitor of DNA repair were compared. The data indicated that benzo[a]pyrene (BP) could exert a potentiating effect of Friend viral leukemogenesis in mice, which was dependent on the relative times of administration of th...

journal_title：Carcinogenesis

authors： Raikow RB,Okunewick JP,Buffo MJ,Jones DL,Brozovich BJ,Seeman PR,Koval TM

更新日期：1981-01-01 00:00:00

abstract：:To examine the miscoding properties of modified guanine residues bearing increasingly bulky O6-substituents, Rat4 cells, grown in the presence of O6-benzylguanine to deplete the DNA repair protein O6-alkylguanine-DNA alkyltransferase, were transfected with plasmids carrying H-ras genes in which O6-methyl, O6-ethyl- an...

journal_title：Carcinogenesis

authors： Bishop RE,Pauly GT,Moschel RC

更新日期：1996-04-01 00:00:00

abstract：:The present study was aimed at verifying the occurrence, if any, of in vivo oxidative DNA damage in FA homozygotes, their parents and siblings. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) was measured, by HPLC/EC, in DNA from circulating blood leucocytes from FA homozygotes and their relatives and compared with a group of pa...

journal_title：Carcinogenesis

authors： Degan P,Bonassi S,De Caterina M,Korkina LG,Pinto L,Scopacasa F,Zatterale A,Calzone R,Pagano G

更新日期：1995-04-01 00:00:00

abstract：:The ability to repair damaged DNA was determined in different cell populations of rabbit lung cells isolated by centrifugal elutriation. DNA excision repair, measured as unscheduled DNA synthesis, was examined in in vitro confluent primary cultures. A dose dependent level of DNA excision repair was observed in alveola...

journal_title：Carcinogenesis

authors： Deilhaug T,Myrnes B,Aune T,Krokan H,Haugen A

更新日期：1985-04-01 00:00:00

abstract：:A large series of assays of the hepatocarcinogenic potential of 112 different compounds were carried out using a rapid bioassay system developed in this laboratory based on the two-step concept of hepatocarcinogenesis. Rats were initially given a single dose (200 mg/kg) of diethylnitrosamine (DEN) i.p. and starting 2 ...

journal_title：Carcinogenesis

authors： Ito N,Tsuda H,Tatematsu M,Inoue T,Tagawa Y,Aoki T,Uwagawa S,Kagawa M,Ogiso T,Masui T

更新日期：1988-03-01 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：:The crosstalk between microRNAs (miRNAs) and other epigenetic factors may lead to novel hypotheses about carcinogenesis identifying new targets for research. Because a single miRNA can regulate multiple downstream target genes, its altered expression may potentially be a sensitive biomarker to detect early malignant t...

journal_title：Carcinogenesis

authors： Cordero F,Ferrero G,Polidoro S,Fiorito G,Campanella G,Sacerdote C,Mattiello A,Masala G,Agnoli C,Frasca G,Panico S,Palli D,Krogh V,Tumino R,Vineis P,Naccarati A

更新日期：2015-10-01 00:00:00

abstract：:In this study, we determined the wavelength dependence of u.v.-induced pyrimidine dimer formation, cell killing and mutation induction in human diploid skin fibroblasts. Pyrimidine dimers were quantified using the T4 endonuclease V assay, cell killing was measured as loss of colony forming ability and mutation inducti...

journal_title：Carcinogenesis

authors： Enninga IC,Groenendijk RT,Filon AR,van Zeeland AA,Simons JW

更新日期：1986-11-01 00:00:00

abstract：:The Tsc-2 tumor suppressor gene encodes the protein tuberin, a multi-functional protein with sequence homology to the GTPase activating protein (GAP) for Rap1. Mutations in the Tsc-2 gene are associated with the development of renal tumors. The Eker rat (Tsc-2(EK/+)) bears a mutation in one allele of the Tsc-2 gene, w...

journal_title：Carcinogenesis

authors： Habib SL,Phan MN,Patel SK,Li D,Monks TJ,Lau SS

更新日期：2003-03-01 00:00:00

abstract：:The development of human breast cancer is a complex multi-step process that depends on various exogenous and endogenous factors that modulate the transformation of normal human breast epithelial cells into neoplastic ones. Using a spontaneously-immortalized human breast epithelial (MCF-10F) cell line, we have shown pr...

journal_title：Carcinogenesis

authors： Roy D,Calaf G,Hei TK

更新日期：2001-10-01 00:00:00

abstract：:The modulating effects of dietary feeding of two xanthophylls, astaxanthin (AX) and canthaxanthin (CX) during the postinitiation phase on colon carcinogenesis initiated with azoxymethane (AOM) were investigated in male F344 rats. Animals were initiated with AOM by weekly s.c. injections of 15 mg/kg body wt for 3 weeks...

journal_title：Carcinogenesis

authors： Tanaka T,Kawamori T,Ohnishi M,Makita H,Mori H,Satoh K,Hara A

更新日期：1995-12-01 00:00:00

abstract：:The MDM2 protein negatively regulates p53 expression level in modulating DNA repair, cell-cycle control, cell growth and apoptosis. Polymorphisms in the promoter region of the MDM2 gene have been shown to alter protein expression and may, thus, play a role in carcinogenesis. To test our hypothesis that the MDM2 promot...

journal_title：Carcinogenesis

authors： Li G,Zhai X,Zhang Z,Chamberlain RM,Spitz MR,Wei Q

更新日期：2006-10-01 00:00:00

abstract：:The N-hydroxylamine of the carcinogen 2-amino-3-methylimidazolo[4,5-f]quinoline (IQ) covalently bound to calf thymus DNA at pH 7, and the binding was 11% higher under acidic conditions (pH 5). The extent of N-hydroxy-IQ binding to single-stranded polynucleotides at neutral pH was in the following order: polyguanylic a...

journal_title：Carcinogenesis

authors： Snyderwine EG,Roller PP,Adamson RH,Sato S,Thorgeirsson SS

更新日期：1988-06-01 00:00:00

abstract：:The repair of u.v.-induced damage in human and rodent cells was investigated at the level of DNA loops attached to the nuclear matrix. After 2 h post-u.v. incubation, DNase I digestion studies revealed a 3- to 4-fold enrichment of repair-labeled DNA at the nuclear matrix in four xeroderma pigmentosum cell strains belo...

journal_title：Carcinogenesis

authors： Mullenders LH,van Kesteren AC,Bussmann CJ,van Zeeland AA,Natarajan AT

更新日期：1986-06-01 00:00:00

abstract：:O6-Alkylguanine-DNA alkyltransferase (AGAT) activity was determined in macroscopically normal peripheral lung tissues from 122 patients undergoing lung surgery. AGAT activity of smokers was 1.4-fold higher than that of lifetime non-smokers (P = 0.030). Less than one year of abstinence from smoking did not cause a sign...

journal_title：Carcinogenesis

authors： Drin I,Schoket B,Kostic S,Vincze I

更新日期：1994-08-01 00:00:00

abstract：:The NF2 gene encodes the tumor and metastasis suppressor protein Merlin. Merlin exerts its tumor suppressive role by inhibiting proliferation and inducing contact-growth inhibition and apoptosis. In the current investigation, we determined that loss of Merlin in breast cancer tissues is concordant with the loss of the...

journal_title：Carcinogenesis

authors： Mota MSV,Jackson WP,Bailey SK,Vayalil P,Landar A,Rostas JW 3rd,Mulekar MS,Samant RS,Shevde LA

更新日期：2018-09-21 00:00:00

abstract：:The metabolism of zymosterol and mevalonic acid was studied in vitro using the skin homogenates of 3-methylcholanthrene (3MC), diazacholesterol-treated and untreated mice. In normal mouse skin only lathosterol was a major metabolite and the other metabolites, cholesta-5,7,24-trien-3 beta-ol, desmosterol, cholesterol a...

journal_title：Carcinogenesis

authors： Tanimoto Y,Fukao K,Yoshiga K,Takada K,Ohyama Y,Okuda K

更新日期：1990-09-01 00:00:00

abstract：:Four monoclonal antibodies, PhIP-1, -2, -3 and -4, have been produced that bind to PhIP (2-amino-1-methyl-6-phenyl-imidazo[4,5-b]pyridine), a mutagenic aromatic amine produced in meat by cooking. The immunogen was an analog of PhIP conjugated to a carrier protein through the 2-amino group of PhIP, leaving the pyridine...

journal_title：Carcinogenesis

authors： Vanderlaan M,Watkins BE,Hwang M,Knize MG,Felton JS

更新日期：1989-12-01 00:00:00