Pancreatic carcinogenicity of N-nitrosobis(2-oxopropyl)-amine in diabetic and non-diabetic Chinese hamsters.

abstract：:Vesnarinone (OPC-8212; 3,4-dihydro-6-[4-(3,4-dimethoxybenzoyl)-1-piperazinyl]-2(1H)-quinolinone ) is a synthetic oral cardiotonic agent that has been used for the treatment of patients with congestive heart failure. Six days of treatment with 30 microg/ml of vesnarinone induced 20-80% growth inhibitions in five out of...

journal_title：Cancer letters

authors： Yokozaki H,Ito R,Ono S,Hayashi K,Tahara E

更新日期：1999-06-01 00:00:00

abstract：:Cancer stem cells (CSCs) are a small subpopulation of tumour cells that have been proposed to be responsible for cancer initiation, chemotherapy resistance and cancer recurrence. Shear stress activated cellular signalling is involved in cellular migration, proliferation and differentiation. However, little is known ab...

journal_title：Cancer letters

authors： Sun J,Luo Q,Liu L,Song G

更新日期：2018-07-28 00:00:00

abstract：:The effect of Pseudomonas aeruginosa colonizing in the gut on the development of gastrointestinal tumors was studied in rats treated orally with N-methyl-N'-nitro-N-nitrosoguanidine (MNNG). The animals were inoculated with or accidentally colonized by P. aeruginosa after MNNG treatment. In 3 serial experiments, P. aer...

journal_title：Cancer letters

authors： Morishita Y,Shimizu T

更新日期：1983-01-01 00:00:00

abstract：:H. pylori infection causes gastritis, peptic ulcers and gastric cancer. Eradicating H. pylori prevents ulcers, but to what extent this prevents cancer remains unknown, especially if given after intestinal metaplasia has developed. H. pylori infected wild-type (WT) mice do not develop cancer, but mice lacking the tumor...

journal_title：Cancer letters

authors： Zhang S,Lee DS,Morrissey R,Aponte-Pieras JR,Rogers AB,Moss SF

更新日期：2015-04-10 00:00:00

abstract：:Absent or altered differentiation is one of the major features of cancer cells. Histone deacetylases (HDACs) play a central role in the epigenetic regulation of gene expression. Aberrant activity of HDACs has been documented in several types of cancers, leading to the development of HDAC inhibitors (HDACi) as anti-tum...

journal_title：Cancer letters

authors： Botrugno OA,Santoro F,Minucci S

更新日期：2009-08-08 00:00:00

abstract：:In this study we demonstrate the involvement of ras oncogenes in bladder cancer at the level of RNA overexpression. We examined 26 bladder specimens, consisting of paired tumor and adjacent normal tissue and found that H-ras transcripts were overexpressed in 39% of the specimens while K-ras and N-ras in 58% of total s...

journal_title：Cancer letters

authors： Vageli D,Kiaris H,Delakas D,Anezinis P,Cranidis A,Spandidos DA

更新日期：1996-10-22 00:00:00

abstract：:Several clinical protocols are attempting to utilize the combined anti-proliferative signal of interferon-alpha (INF-alpha) and tamoxifen on cancer cells. We demonstrated here that the effect of these two agents on the growth of the premacrophage U937 cells is antagonistic. This antagonistic effect is paralleled by th...

journal_title：Cancer letters

authors： Balint E,Grimley PM,Michalic R,Aszalos A

更新日期：1992-10-30 00:00:00

abstract：:To investigate characteristic of lung adenocarcinoma growth behavior, we have established a cell line (rat lung cancer in Nara (RLCNR)) from a tumor induced by N-nitrosobis(2-hydroxypropyl)amine (BHP) in a rat. This clone shows an epithelial cell morphology and grows as sheets in culture with an approximate doubling t...

journal_title：Cancer letters

authors： Tsujiuchi T,Mori T,Amanuma T,Tanaka N,Tsutsumi M

更新日期：2005-01-10 00:00:00

abstract：:The expression of DNA-topoisomerase II was analysed at the protein level in newly diagnosed cases of acute lymphoblastic leukemia (ALL) in children. Blast cells obtained from 81 children with untreated ALL were determined by means of immunocytochemistry. Of the ALL, 49 (60%) were positive for topoisomerase II and 32 (...

journal_title：Cancer letters

authors： Stammler G,Sauerbrey A,Volm M

更新日期：1994-09-15 00:00:00

abstract：:A hallmark of most cancer cells is an altered metabolism involving a shift to aerobic glycolysis with lactate production coupled with a higher uptake of glucose as the main source of energy. Lactate dehydrogenase 5 (LDH-5) catalyzes the reduction of pyruvate by NADH to form lactate, thus determining the availability o...

journal_title：Cancer letters

authors： Augoff K,Hryniewicz-Jankowska A,Tabola R

更新日期：2015-03-01 00:00:00

abstract：:Aberrant crypt foci (ACF) have recently been identified as early putative preneoplastic lesions which appear in the colons of experimental animals treated with colon carcinogens. In a recent study the two heterocyclic amines, 2-amino-3-methyl-imidazo[4,5-f]quinoline (IQ) and 2-amino-1-methyl-6-phenyl-imidazo[4,5-b]pyr...

journal_title：Cancer letters

authors： Kristiansen E

更新日期：1996-12-20 00:00:00

abstract：:Putrescine (PU), spermidine (SPD) and spermine (SPM) levels in blood serum of MC Sa 1828 P-bearing rats have been studied in relation to tumour weight and the histological picture. A statistically significant increase of PU and SPD was found in the course of tumour development. Decrease in the level of polyamines in t...

journal_title：Cancer letters

authors： Kaminski K,Maslinski C,Stanosek J,Szczurek Z

更新日期：1987-01-01 00:00:00

abstract：:Human PRL-1, PRL-2, and PRL-3 tyrosine phosphatases induce the malignant transformation of epithelial cells. We tested the hypothesis that the oncogenic effects of PRL occur by increasing cellular proliferation. Cells stably transfected with PRL-1 or PRL-2 exhibited 2.7-3.3-fold increases over control cells in the rat...

journal_title：Cancer letters

authors： Werner SR,Lee PA,DeCamp MW,Crowell DN,Randall SK,Crowell PL

更新日期：2003-12-30 00:00:00

abstract：:The carcinogenic effects of the fungicide manganese ethylenebisdithiocarbamate (maneb) have been investigated in 2 populations of adult crested newt, which have different prevalences of spontaneous melanoma. Animals were exposed percutaneously to a 5 ppm solution of maneb 4 days a week for 37 weeks. No differences in ...

journal_title：Cancer letters

authors： Zavanella T,Zaffaroni NP,Arias E

更新日期：1980-08-01 00:00:00

abstract：:Helicobacter pylori (H. pylori) infection is considered a major risk factor for gastric cancer. CagA behaves as a major bacterial oncoprotein playing a key role in H. pylori-induced tumorigenesis. Cancer stem cells (CSCs) are believed to possess the ability to initiate tumorigenesis and promote progression. Although s...

journal_title：Cancer letters

authors： Yong X,Tang B,Xiao YF,Xie R,Qin Y,Luo G,Hu CJ,Dong H,Yang SM

更新日期：2016-05-01 00:00:00

abstract：:(-)-Epigallocatechin gallate (EGCG), a major constituent of green tea, has been shown to exhibit anti-cancer activity. Sulindac is also well known as a cancer-preventive agent against colon cancer, but its usage is restricted because of its adverse effects, as exemplified by gastrointestinal bleeding. In the present s...

journal_title：Cancer letters

authors： Ohishi T,Kishimoto Y,Miura N,Shiota G,Kohri T,Hara Y,Hasegawa J,Isemura M

更新日期：2002-03-08 00:00:00

abstract：:It was found that free radical intermediates, pyrazine cation radial and carbon-centered radicals, generated in the Maillard reaction of sugars/amino acids, were involved in the production of mutagenic and carcinogenic imidazoquinoquizaline heterocyclic amines. Prevention of the generation of these radical intermediat...

journal_title：Cancer letters

authors： Kikugawa K

更新日期：1999-09-01 00:00:00

abstract：:The binding of [14C] azaserine or its metabolites to DNA and protein in the organs of rats and hamsters was determined at various time after treatment with [14C] azaserine. The specific activity of 14C labelling of DNA and protein was determined. Rat liver DNA and protein were most extensively labelled at 90 min post-...

journal_title：Cancer letters

authors： Zurlo J,Coon CI,Longnecker DS,Curphey TJ

更新日期：1982-05-01 00:00:00

abstract：:Currently, chemoresistance is an important cause of treatment failure in colorectal cancer. Cancer stem cells, which are a population of multi-potent cells with the capacity to self-renew and differentiate, have been found to participate in chemoresistance. In the present study, the chemotherapeutic drug oxaliplatin i...

journal_title：Cancer letters

authors： Yang HZ,Ma Y,Zhou Y,Xu LM,Chen XJ,Ding WB,Zou HB

更新日期：2015-05-28 00:00:00

abstract：:The heterogeneous nuclear ribonucleoprotein K (hnRNP K) is a nucleic acid-binding protein that serves as a docking platform integrating transduction pathways to nucleic acid -directed processes. Recently, this protein has emerged as an important player in carcinogenesis process. HnRNP K is overexpressed in several hum...

journal_title：Cancer letters

authors： Barboro P,Ferrari N,Balbi C

更新日期：2014-10-01 00:00:00

abstract：:Berberine, an isoquinoline alkaloid, has a wide range of pharmacological effects, including anti-inflammation, yet the exact mechanism is unknown. Because cyclooxygenase-2 (COX-2) plays a key role in prostaglandins (PGs) synthesis, which is elevated in inflammation, we examined whether the anti-inflammatory mechanism ...

journal_title：Cancer letters

authors： Kuo CL,Chi CW,Liu TY

更新日期：2004-01-20 00:00:00

abstract：:Antimutagenic activity of copper chlorophyllin against various carcinogenic mutagens was assayed with Drosophila genotoxicity tests, i.e., the wing spot test for detecting somatic cell mutations and the DNA repair test for detecting DNA damage. In these tests, Drosophila larvae were fed carcinogens together with chlor...

journal_title：Cancer letters

authors： Negishi T,Nakano H,Kitamura A,Itome C,Shiotani T,Hayatsu H

更新日期：1994-08-15 00:00:00

abstract：:Innate resistance to various therapeutic interventions is a hallmark of cancer. In recent years, however, acquired resistance has emerged as a daunting challenge to anticancer treatments including chemotherapy, radiation and targeted therapy, which abolishes the efficacy of otherwise successful regimens. Cancer cells ...

journal_title：Cancer letters

authors： Sun Y

更新日期：2016-09-28 00:00:00

abstract：:Invasion process occurs both in mammalian embryo implantation during development and malignant cancer cell metastasis. We investigated the interactions between trophoblasts and metastatic cancer cells and found the phenomenon that mouse trophoblastic cells invaded the monolayer of malignant cancer cells in vitro and a...

journal_title：Cancer letters

authors： Fang LQ,Zhang H,Ding XY,Li DQ,Hou XL,Qiao H,Bai J,Wang ZB

更新日期：2010-12-28 00:00:00

abstract：:Tumors are known to cause profound changes in host biology, but the mechanisms responsible for these changes remain unclear. Ornithine decarboxylase (ODC) is a rate-limiting enzyme that catalyzes the biosynthesis of polyamines. The purpose of this study was to examine the effects of MC-26 tumor burden on ODC activity ...

journal_title：Cancer letters

authors： Saydjari R,Beauchamp RD,Townsend CM Jr,Thompson JC

更新日期：1991-06-14 00:00:00

abstract：:Cancerous breast hyperthermia is seemingly associated with non-neurological vasodilation modulated by nitric oxide (NO). NO, associated with enhanced immune response, is produced autocatalytically involving ferritin as the supplier of Fe2+, which catalyses the formation of NO. NO, in turn, releases Fe2+ from ferritin....

journal_title：Cancer letters

authors： Anbar M

更新日期：1994-08-29 00:00:00

abstract：:The human c-myb gene which encodes a DNA binding protein and which is rarely amplified in neoplastic cells was found to be altered in four human glioblastoma cell lines. It exists in multiple copies in 2 out of 4 cases studied. The degree of amplification as determined by densitometry was about 10-fold, a rearrangemen...

journal_title：Cancer letters

authors： Welter C,Henn W,Theisinger B,Fischer H,Zang KD,Blin N

更新日期：1990-06-30 00:00:00

abstract：:A newly found human retrovirus, adult T-cell leukemia virus (ATLV) was shown by means of membrane immunofluorescence to bind to various hematopoietic cells including T-, B- and non-T, non-B-cell lines. Partially purified viral gp46 from culture fluids of ATL virus producer lines also bound efficiently to an ATLV-negat...

journal_title：Cancer letters

authors： Yamamoto N,Chosa T,Koyanagi Y,Tochikura T,Schneider J,Hinuma Y

更新日期：1984-01-01 00:00:00

abstract：:The formation of nitroso compounds and mutagens from 5 nitrogen-containing drugs (cinnarizine, ethambutol, piromidic acid, pyridinol carbamate and tiaramide) by drug/nitrite interaction was examined. On the reaction of 50 micrometers drug and 500 micrometers nitrite at pH 3.0--3.4 and 37 degrees C for 4 h, the conside...

journal_title：Cancer letters

authors： Takeda Y,Kanaya H

更新日期：1982-01-01 00:00:00

abstract：:Cancer prevention techniques include legislative regulation, chemoprevention, adherence to a "healthful" lifestyle, and specialized medical intervention. Attempts at cancer prevention have possibly avoided a dramatic increase in cancer incidence and mortality due to increasing dependence on the products of the chemica...

journal_title：Cancer letters

authors： Clayson DB

更新日期：1990-04-09 00:00:00