Genetic polymorphisms of glutathione S-transferases as modulators of lung cancer susceptibility.

abstract：:4-Hydroxyphenylretinamide (4-HPR) is a synthetic retinoid with minimal toxicity and favorable pharmacokinetics during long-term administration to patients in clinical trials. Since 4-HPR binds poorly to the retinoic acid receptors, the issue of whether 4-HPR exerts its biological actions via classical retinoid recepto...

journal_title：Carcinogenesis

authors： Giandomenico V,Andreola F,Rodriguez de la Concepcion ML,Collins SJ,De Luca LM

更新日期：1999-06-01 00:00:00

abstract：:Previous studies have shown that in addition to serving as a target for covalent adduct formation, purified DNA catalyzes the detoxification of (+/-)-7r,8t-dihydroxy-9t,10t-oxy-7,8,9,10-tetrahydrobenzo[a]pyrene (BPDE). To begin to relate these in vitro findings with the processes important in carcinogenesis in vivo, w...

journal_title：Carcinogenesis

authors： Dock L,MacLeod MC

更新日期：1986-04-01 00:00:00

abstract：:A single i.p. injection of 12-O-tetradecanoylphorbol-13-acetate (TPA) induced a transient increase in the levels of rat liver putrescine, spermidine and spermine. These polyamine concentrations continuously increased until 6 h, immediately following administration of the tumor promoter. Phenobarbital (PB) induced an i...

journal_title：Carcinogenesis

authors： Van Rooijen LA,Derks HJ,Van Wijk R,Bisschop A

更新日期：1984-02-01 00:00:00

abstract：:Apoptosis is a morphologically and biochemically distinct form of cell death which determines specific patterns of tissue size and shape and balances cell proliferation. In the present study, the sequence of cellular proliferative alterations in urinary bladder epithelium associated with uracil-induced reversible urin...

journal_title：Carcinogenesis

authors： Otori K,Yano Y,Takada N,Lee CC,Hayashi S,Otani S,Fukushima S

更新日期：1997-08-01 00:00:00

abstract：:In order to detect any protective agent against tumor formation, we examined the anti-tumor-promoting effect of a Japanese traditional soybean fermented food, Natto. Dye transfer was employed as an assay method. When fluorescent dye was microinjected into cultured BALB/3T3 cells, the dye was transformed into the neigh...

journal_title：Carcinogenesis

authors： Takahashi C,Kikuchi N,Katou N,Miki T,Yanagida F,Umeda M

更新日期：1995-03-01 00:00:00

abstract：:Complementary DNA of marmoset CYP1A2 was isolated by means of screening the cDNA library and reverse-transcriptase polymerase chain reaction. The deduced amino acid sequence of marmoset CYP1A2 consisted of 516 residues and showed 88.2 and 90.0% identities to corresponding forms in human and cynomolgus monkey, respecti...

journal_title：Carcinogenesis

authors： Sakuma T,Igarashi T,Hieda M,Ohgiya S,Isogai M,Ninomiya S,Nagata R,Nemoto N,Kamataki T

更新日期：1997-10-01 00:00:00

abstract：:O6-Methylguanine-DNA methyltransferase (MT)-proficient Chinese hamster ovary cells were grown in the presence of low, gradually increasing levels of N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) with the aim of selecting MNNG-resistant cell lines. Six resistant clones with two levels of resistance were isolated. A 3-fol...

journal_title：Carcinogenesis

authors： Aquilina G,Frosina G,Zijno A,Di Muccio A,Dogliotti E,Abbondandolo A,Bignami M

更新日期：1988-07-01 00:00:00

abstract：:The rat liver microsomal metabolism of 3-deutero-6-nitrobenzo(a)pyrene ([3-2H]6-NO2-BaP) was studied. The metabolites were separated by h.p.l.c. The 500 MHz 1H n.m.r. spectral analysis of the metabolites indicated that the 3-hydroxy-6-NO2-BaP and 6-NO2-BaP-3,9-hydroquinone each retained 33% of the deuterium label at t...

journal_title：Carcinogenesis

authors： Chou MW,Evans FE,Yang SK,Fu PP

更新日期：1983-01-01 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：: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：:Human male volunteers were studied in a metabolic facility whilst they were fed randomized controlled diets. In eight volunteers there was a significant increase in faecal apparent total N:-nitroso compounds (ATNC) and nitrite excretion (P < 0.0001 and P = 0.046, respectively) when randomized doses of meat were increa...

journal_title：Carcinogenesis

authors： Hughes R,Cross AJ,Pollock JR,Bingham S

更新日期：2001-01-01 00:00:00

abstract：:The androgen receptor (AR) is involved in the development and progression of prostate cancer. In order to find new compounds that may present novel mechanisms to attenuate the function of AR, we investigated the effect of a natural flavonoid chemical, quercetin, on androgen action in an androgen-responsive LNCaP prost...

journal_title：Carcinogenesis

authors： Xing N,Chen Y,Mitchell SH,Young CY

更新日期：2001-03-01 00:00:00

abstract：:A number of model systems have been developed to study the initiating and promoting phases of neoplastic development in rats liver. Four of these protocols use diethylnitrosamine (DEN) initiation, but employ different methods of promotion. The present studies were designed to evaluate these systems under standardized ...

journal_title：Carcinogenesis

authors： Leonard TB,Dent JG,Graichen ME,Lyght O,Popp JA

更新日期：1982-01-01 00:00:00

abstract：:A growing body of evidence from human and animal cancer cytogenetics studies indicates that aneuploidy is an important chromosome change in carcinogenesis. To understand the role of this genetic phenomenon during the first steps of an experimental cancer model, molecular and cellular techniques were combined. A sequen...

journal_title：Carcinogenesis

authors： Van Goethem F,de Stoppelaar J,Hoebee B,Kirsch-Volders M

更新日期：1995-08-01 00:00:00

abstract：:In vitro activation of benzo[a]pyrene to protein-binding forms was investigated with the following two systems: (1) various fractions of human and rat blood had a potential of activating benzo[a]pyrene to forms binding to proteins in the presence of linoleic or arachidonic acid. Red blood cells activated much more ben...

journal_title：Carcinogenesis

authors： Nemoto N

更新日期：1986-02-01 00:00:00

abstract：:A 25mer oligonucleotide containing a single N-(deoxyguanosin-8-yl-)-1-aminopyrene (dGAP), the major DNA adduct formed by reductively activated 1-nitropyrene, was synthesized. The adduct was located at nucleotide 21 from the 3' end. DNA synthesis on this template by human DNA polymerases alpha and beta, HIV reverse tra...

journal_title：Carcinogenesis

authors： Vyas RR,Basu AK

更新日期：1995-04-01 00:00:00

abstract：:Formation of O6-ethylguanine (O6EG) in trachea DNA was measured 12 h after acute i.p. administration of 50, 100 and 200 mg diethylnitrosamine (DEN)/kg body wt to Syrian golden hamsters. Purine bases were fractionated by h.p.l.c., and ethylated guanines were quantified optically by fluorescence spectrophotometry. Signi...

journal_title：Carcinogenesis

authors： Fong AT,Rasmussen RE

更新日期：1986-09-01 00:00:00

abstract：:The anti-neoplastic agent procarbazine is genetically active in a variety of short term mutagenicity tests, and it also possesses carcinogenic and teratogenic potential. This compound has consistently yielded false negative results in in vitro microbial mutagenicity tests in the presence and absence of mammalian metab...

journal_title：Carcinogenesis

authors： Gatehouse DG,Paes DJ

更新日期：1983-01-01 00:00:00

abstract：:The inability of cells in culture to grow in medium where methionine is replaced by its metabolic precursor, homocysteine, has been linked to neoplastic transformation and termed 'methionine dependence' or 'methionine auxotrophy'. The present investigation was undertaken to establish the influence of intracellular glu...

journal_title：Carcinogenesis

authors： Djurhuus R,Svardal AM,Mansoor MA,Ueland PM

更新日期：1991-02-01 00:00:00

abstract：:The possibility that alpha-tocopherol (vitamin E) inhibits the formation of nitrosomorpholine (NMOR) in vivo was investigated in mice orally pretreated with alpha-tocopherol (2.5-100 mg/kg body wt) once daily for 6 days. Twenty-four hours later, the animals were injected i.p. with 2 mg of morpholine (MOR) per animal f...

journal_title：Carcinogenesis

authors： Norkus EP,Kuenzig WA,Chau J,Mergens WJ,Conney AH

更新日期：1986-03-01 00:00:00

abstract：:We investigated possible mechanisms associated with promotion of hepatocarcinogenesis by the synthetic estrogens mestranol (M) and ethinyl estradiol (EE). Our first objective was to determine whether chronic EE treatment was associated with hepatotoxicity accompanied by regenerative hyperplasia. Female Sprague-Dawley ...

journal_title：Carcinogenesis

authors： Yager JD,Roebuck BD,Paluszcyk TL,Memoli VA

更新日期：1986-12-01 00:00:00

abstract：:Aloe-emodin (AE), one of the main bioactive anthraquinones of Rheum palmatum, possesses potent antitumor properties. Our previous proteomic study revealed that AE-induced apoptosis was associated with oxidative stress and oxidation of many redox-sensitive proteins. In this study, we aimed to further dissect the cell d...

journal_title：Carcinogenesis

authors： Lu GD,Shen HM,Chung MC,Ong CN

更新日期：2007-09-01 00:00:00

abstract：:Serum selenium (Se) levels were measured before, during and after high-dose induction chemotherapy in 70 patients with acute non-lymphocytic leukemia (ANLL). Pre-treatment serum Se levels were lower in patients than in controls (0.082 +/- 0.033 micrograms/ml versus 0.097 +/- 0.035 micrograms/ml, P less than 0.01). Pre...

journal_title：Carcinogenesis

authors： Beguin Y,Bours V,Delbrouck JM,Robaye G,Roelandts I,Bury J,Fillet G,Weber G

更新日期：1989-11-01 00:00:00

abstract：:The effects of consumption of glucosinolate-containing Brussels sprouts on plasma and urinary glutathione S-transferase (GST) class-alpha and -pi were investigated. Five male and five female non-smoking volunteers were randomly assigned to two groups in a crossover design. Five persons started on a glucosinolate-free ...

journal_title：Carcinogenesis

authors： Nijhoff WA,Mulder TP,Verhagen H,van Poppel G,Peters WH

更新日期：1995-04-01 00:00:00

abstract：:Amarogentin, a secoiridoid glycoside, is an active component of the medicinal plant Swertia chirata. In this study, chemopreventive and chemotherapeutic actions of amarogentin were evaluated in a carbon tetrachloride (CCl(4))/N-nitrosodiethylamine (NDEA)-induced liver carcinogenesis mouse model system during continuou...

journal_title：Carcinogenesis

authors： Pal D,Sur S,Mandal S,Das A,Roy A,Das S,Panda CK

更新日期：2012-12-01 00:00:00

abstract：:Gap junctions are composed of protein subunits, called connexins, and provide a pathway for the exchange of ions and small molecules between contacting cells. This transfer of molecules is thought to be an important pathway for direct cell communication, and is involved in tissue homeostasis, growth control and embryo...

journal_title：Carcinogenesis

authors： Evert M,Ott T,Temme A,Willecke K,Dombrowski F

更新日期：2002-05-01 00:00:00

abstract：:The individual genotoxic response of cultured human lymphocytes to diepoxybutane (DEB), an epoxide metabolite of 1,3-butadiene, shows a bimodal distribution. Blood donors can be classified as either DEB-sensitive or DEB-resistant on the basis of the frequency of sister chromatid exchanges (SCEs) induced by DEB in whol...

journal_title：Carcinogenesis

authors： Norppa H,Hirvonen A,Järventaus H,Uusküla M,Tasa G,Ojajärvi A,Sorsa M

更新日期：1995-06-01 00:00:00

abstract：:A monoclonal antibody specific for cyclobutane thymine dimers in DNA was used in immunofluorescence studies to detect these lesions in skin sections taken from hairless mice that had been irradiated with UV-B. The dimer-specific fluorescence in epidermal cell nuclei was quantified with fluorescence microscopy through ...

journal_title：Carcinogenesis

authors： Vink AA,Berg RJ,de Gruijl FR,Roza L,Baan RA

更新日期：1991-05-01 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：:Recent studies indicate that cytochrome P450 (P450) 3A4 plays important roles in the activation of procarcinogens such as aflatoxin B1 and sterigmatocystin, as well as in the oxidation of a number of structurally diverse chemicals and endogenous compounds. Since P450 3A5 has been reported to be present at significant ...

journal_title：Carcinogenesis

authors： Yamazaki H,Inui Y,Wrighton SA,Guengerich FP,Shimada T

更新日期：1995-09-01 00:00:00