Inhibitory effects of triptogelin A-1 on 12-O-tetradecanoylphorbol-13- acetate-induced skin tumor promotion.

abstract：:BRCA1 and BRCA2 genes were screened for loss-of-function mutations in a series of 85 patients having at least one first- or second-degree relative affected by breast and/or ovarian cancer. All BRCA1 exons and BRCA2 exons 10 and 11 were screened with a combination of methods including SSCP, PTT and direct sequencing. W...

journal_title：Cancer letters

authors： Ladopoulou A,Kroupis C,Konstantopoulou I,Ioannidou-Mouzaka L,Schofield AC,Pantazidis A,Armaou S,Tsiagas I,Lianidou E,Efstathiou E,Tsionou C,Panopoulos C,Mihalatos M,Nasioulas G,Skarlos D,Haites NE,Fountzilas G,Pandis N

更新日期：2002-11-08 00:00:00

abstract：:We describe the events triggered by a sub-lethal concentration of airborne particulate matter (PM(10)) in A549 cells, which include the formation DNA double-strand breaks, gammaH2A.X generation, and 53BP1 recruitment. To protect the genome, cells activated ATM/ATR/Chk1/Chk2/p53 pathway but, after 48 h, cells turned in...

journal_title：Cancer letters

authors： Sánchez-Pérez Y,Chirino YI,Osornio-Vargas ÁR,Morales-Bárcenas R,Gutiérrez-Ruíz C,Vázquez-López I,García-Cuellar CM

更新日期：2009-06-18 00:00:00

abstract：:The Syrian hamster embryo cell transformation assay has been used to investigate the effect of two synthetic antioxidants on morphological transformation induced by the initiator benzo[a]pyrene (BP). A two-stage protocol was employed with an initiation phase of 2 days and a subsequent promotion phase of 5 days. When 1...

journal_title：Cancer letters

authors： Potenberg J,Schiffmann D,Kahl R,Hildebrandt AG,Henschler D

更新日期：1986-11-01 00:00:00

abstract：:To search for possible cancer chemopreventive agents from natural sources, we performed primary screening of ten flavanones isolated from plants belonging to Rutaceae and Leguminosae by examining their possible inhibitory effects on Epstein-Barr virus (EBV) early antigen activation induced by 12-O-tetradecanoylphorbol...

journal_title：Cancer letters

authors： Itoigawa M,Ito C,Ju-ichi M,Nobukuni T,Ichiishi E,Tokuda H,Nishino H,Furukawa H

更新日期：2002-02-08 00:00:00

abstract：:Two hepatoma cell lines were incubated for 72 h with ATRA and its analog 13cisRA and according to MTT assay, Hep3B cells were highly susceptible whereas HepG2 cells were more resistant to the treatment. At the high concentration of 166 microM, retinoids were able to induce apoptosis in both cell lines and the highest ...

journal_title：Cancer letters

authors： Arce F,Gätjens-Boniche O,Vargas E,Valverde B,Díaz C

更新日期：2005-11-18 00:00:00

abstract：:The carcinogenic effect of dimethylnitrosamine (DMN) s.c. injected at two different dose levels was studied in laboratory bred European hamsters (EH) and data compared to findings for captured EH. Malignant haemangioendotheliomas of the liver and kidney, hepatocellular carcinomas and cholangiocarcinomas were induced. ...

journal_title：Cancer letters

authors： Richter-Reichhelm HB,Green U,Ketkar MB,Mohr U

更新日期：1978-01-01 00:00:00

abstract：:Multiple studies have shown that cancer patients produce detectable autoantibodies against certain tumor-associated antigens, which might be promising blood biomarkers for early detection of colorectal cancer (CRC). We aimed to provide an overview of published studies on blood autoantibody markers for early detection ...

journal_title：Cancer letters

authors： Chen H,Werner S,Tao S,Zörnig I,Brenner H

更新日期：2014-05-01 00:00:00

abstract：:Condensed roofing asphalt fumes, generated at 316 degrees C, were collected by cold trap condensation and fractionated by preparative high performance liquid chromatography. Chemical classes in each of the fractions (A-E) were identified by gas chromatography/mass spectroscopy. The fractions, various combinations of f...

journal_title：Cancer letters

authors： Sivak A,Niemeier R,Lynch D,Beltis K,Simon S,Salomon R,Latta R,Belinky B,Menzies K,Lunsford A,Cooper C,Ross A,Bruner R

更新日期：1997-07-15 00:00:00

abstract：:Mining and mineral processing are important industries in the United States. A large number of workers are potentially exposed to silica during mining and to glass fibers during manufacturing. There is a concern regarding lung cancer risk among workers exposed to silica and glass fibers. Our previous studies showed th...

journal_title：Cancer letters

authors： Gao H,Brick J,Ong S,Miller M,Whong WZ,Ong T

更新日期：1997-01-15 00:00:00

abstract：:We conducted a pilot study to assess the feasibility using the Electoral Register to carry out a cervical cancer screening programme on a Health District basis. A random sample of 500 names and addresses were drawn from a computerised list of the Electoral Register from three Electoral Wards in Oxford. A pilot study s...

journal_title：Cancer letters

authors： Cook GA,Wald NJ

更新日期：1985-09-30 00:00:00

abstract：:Artesunate (ART), a semi-synthetic derivative of artemisinin extracted from the Chinese herb Artemisia annua, is a safe and effective antimalarial drug. ART has now been analyzed for its anti-angiogenic activity in vivo and in vitro. The anti-angiogenic effect in vivo was evaluated on chicken chorioallantoic membrane ...

journal_title：Cancer letters

authors： Huan-huan C,Li-Li Y,Shang-Bin L

更新日期：2004-08-10 00:00:00

abstract：:Dioxane, perchloroethylene, and trichloroethylene were investigated as rat liver altered foci promoters in an initiation/promotion protocol. Animals were initiated with diethylnitrosamine, 30 mg/kg, injected i.p. 24 h after 2/3 partial hepatectomy. The chemical under study was administered by gavage once a day, 5 time...

journal_title：Cancer letters

authors： Lundberg I,Högberg J,Kronevi T,Holmberg B

更新日期：1987-07-01 00:00:00

abstract：:Fanconi Anemia has recently been associated with a high risk of head and neck squamous cell carcinoma (HNSCC). Inactivation of the Fanconi Anemia (FANC-BRCA) pathway via promoter methylation of the FANCF gene has been proposed to be responsible for variation in cisplatinum (CDDP) sensitivity seen in ovarian and HNSCCs...

journal_title：Cancer letters

authors： Snyder ER,Ricker JL,Chen Z,Waes CV

更新日期：2007-01-08 00:00:00

abstract：:RNA interference (RNAi), a natural cellular mechanism for RNA-guided regulation of gene expression could in fact become new therapeutic modality if an appropriate efficient delivery strategy that is also reproducible and safe will be developed. Numerous efforts have been made for the past eight years to address this c...

journal_title：Cancer letters

authors： Landesman-Milo D,Goldsmith M,Leviatan Ben-Arye S,Witenberg B,Brown E,Leibovitch S,Azriel S,Tabak S,Morad V,Peer D

更新日期：2013-07-01 00:00:00

abstract：:Histone deacetylase inhibitors (HDIs) exert direct tumour-toxic activity and sensitise tumour cells for other therapeutic regimens as well as the cytotoxic effects of activated immune cells. However, the HDI suberoylanilide hydroxamic acid (SAHA; vorinostat) interfered with the IL-2 activation of human NK cells and th...

journal_title：Cancer letters

authors： Schmudde M,Friebe E,Sonnemann J,Beck JF,Bröker BM

更新日期：2010-09-28 00:00:00

abstract：:Cyclin A is an S and G2/M phase regulatory protein and associates with Skp 2 in many transformed cells. Our previous results showed that 12 (39%) and 17 (55%) out of 31 hepatocellular carcinoma (HCC) patients exhibited higher protein expression levels of cyclin A and Skp 2, respectively, in their tumorous compared to ...

journal_title：Cancer letters

authors： Chao Y,Shih YL,Chen HJ,Lee SD,Huang TS

更新日期：1999-05-03 00:00:00

abstract：:This study investigated the role of miR-206 in estrogen receptor-α (ERα)-positive endometrial endometrioid adenocarcinoma (EEC). We profiled miR-206 expression in 30 EEC clinical samples using qRT-PCR, and explored its relationship with ERα and clinical parameters. A luciferase reporter assay assessed the ERα targetin...

journal_title：Cancer letters

authors： Chen X,Yan Q,Li S,Zhou L,Yang H,Yang Y,Liu X,Wan X

更新日期：2012-01-01 00:00:00

abstract：:Methylation of liver and nasal mucosal DNA at the O6 position of guanine (O6-MeG) was measured in intact and castrated male rats after a dose of N-nitrosobis(2-oxopropyl)amine (BOP) (20 mg/kg; i.p.). There were no differences in O6-MeG persistence in liver DNA from either group. In the nasal mucosa more O6-MeG was det...

journal_title：Cancer letters

authors： Lawson TA

更新日期：1990-08-01 00:00:00

abstract：:In the present study, we tested the hypothesis that a mild cerebral tissue injury promotes subsequent glioma invasion via activation of the ADAM17-EGFR-PI3K-Akt pathway. Mild injury was induced by photodynamic therapy (PDT), which employs tissue-penetrating laser light exposure following systemic administration of a t...

journal_title：Cancer letters

authors： Zheng X,Jiang F,Katakowski M,Zhang X,Jiang H,Zhang ZG,Chopp M

更新日期：2008-07-08 00:00:00

abstract：:Medroxyprogesterone acetate (MPA) is currently used therapeutically in the treatment of mammary and endometrial carcinomas. In order to develop a more potent and useful drug, we synthesized the novel compound, 9alpha-fluoromedoroxyprogesterone acetate (FMPA), by fluorinating MPA, and we also previously reported that F...

journal_title：Cancer letters

authors： Uchida M,Tsuboi H,Yamaji T,Murata N,Kohno T,Sugino E,Hibino S,Shimamura M,Oikawa T

更新日期：2000-06-01 00:00:00

abstract：:Earlier studies performed both by us and by others have demonstrated that some n-3 and n-6 fatty acids can inhibit the growth of tumour cells in vitro. Though studies done with various types of oils rich in n-3 and n-6 fatty acids did show that the tumour incidence and growth can be modified, there were relatively few...

journal_title：Cancer letters

authors： Ramesh G,Das UN

更新日期：1998-01-30 00:00:00

abstract：:Overall survival and quality of life of patients with metastatic colorectal cancer (mCRC) have improved due to the development of standard systemic treatment. However, many patients are still suffering from the eventual progression of cancer, treatment-related toxicities, and the economic burden of new drugs. Salvage ...

journal_title：Cancer letters

authors： Woo IS,Jung YH

更新日期：2017-08-01 00:00:00

abstract：:Hepatitis C virus Core plays a vital role in the development of hepatocellular carcinoma; however, its action mechanism is still controversial. Here, we showed that Core down-regulated levels of p16, resulting in inactivation of Rb and subsequent activation of E2F1, which lead to growth stimulation of hepatocytes. For...

journal_title：Cancer letters

authors： Park SH,Lim JS,Lim SY,Tiwari I,Jang KL

更新日期：2011-11-01 00:00:00

abstract：:The role of the gastrointestinal microflora in the nitrate-dependent formation of nitrosoproline was assessed in control and antibiotic-treated rats. Urinary nitrosoproline excretion as an index of in vivo nitrosamine formation was shown to be unaffected by bacterial decontamination of the alimentary tract, and procee...

journal_title：Cancer letters

authors： Mallett AK,Rowland IR,Cottrell RC,Gangolli SD

更新日期：1984-12-01 00:00:00

abstract：:In order to discover the role in the promotion process of 5-lipoxygenase (5-LO), a key enzyme in the arachidonate cascade, the antipromoting effects of the 5-LO inhibiting 3-nitro-2,4,6-trihydroxybenzamide (NTB) derivatives were studied in a two-stage transformation assay system using BALB 3T3 cells. All compounds inh...

journal_title：Cancer letters

authors： Semba M,Honda I,Shibagaki M,Nishi Y

更新日期：1993-07-30 00:00:00

abstract：:Hyperthermia induces cell death and the usual endpoint to study this is the ability of the cells to form colonies. Hyperthermia is also known to alter membrane characteristics, especially transmembrane potential and this has been correlated with duration and degree of heating. The aim of the present study was to see t...

journal_title：Cancer letters

authors： Remani P,Ostapenko VV,Akagi K,Bhattathiri VN,Nair MK,Tanaka Y

更新日期：1999-10-01 00:00:00

abstract：:Neural stem cells (NSCs) led to the development of a novel strategy for delivering therapeutic genes to tumors. NSCs expressing rabbit carboxyl esterase (F3.CE), which activates CPT-11, significantly inhibited the growth of MDA-MB-435 cells in the presence of CPT-11. F3.CE cells migrated selectively into the brain met...

journal_title：Cancer letters

authors： Seol HJ,Jin J,Seong DH,Joo KM,Kang W,Yang H,Kim J,Shin CS,Kim Y,Kim KH,Kong DS,Lee JI,Aboody KS,Lee HJ,Kim SU,Nam DH

更新日期：2011-12-08 00:00:00

abstract：:uPA system plays an important role in cancer invasion and metastasis. The binding of uPA to its receptor, uPAR, is necessary for the activation of uPA system. We studied by immunohistochemistry the distribution pattern of uPAR on 173 paraffin-embedded samples of invasive breast carcinomas in relation to clinicopatholo...

journal_title：Cancer letters

authors： Giannopoulou I,Mylona E,Kapranou A,Mavrommatis J,Markaki S,Zoumbouli Ch,Keramopoulos A,Nakopoulou L

更新日期：2007-02-08 00:00:00

abstract：:Herpes simplex virus was grown in different lines of human tumor and normal cells. The progeny virus was assayed for resistance to iododeoxycytidine, an indicator of a forward mutation in the virus genome. Virus grown in cells from 4 of 5 tumor lines demonstrated greater fractions mutated to iododeoxycytidine resistan...

journal_title：Cancer letters

authors： Bockstahler LE,Lytle CD,Lubiniecki AS,Cantwell JM,Galleshaw JA

更新日期：1982-11-01 00:00:00

abstract：:N-[2-(p-bromocinnamylmethylamino) ethyl]-5-isoquinolinesulfonamide (H-87), a newly synthesized inhibitor of protein kinase A, significantly decreased the drug resistance of multidrug resistant human U937/M cells, mouse FM3A/M and P388/M cells. Northern blot analysis showed MDR1 gene expression was decreased in H-87-tr...

journal_title：Cancer letters

authors： Kim SH,Park JI,Chung BS,Kang CD,Hidaka H

更新日期：1993-10-15 00:00:00