Mutagenicity of the non-carcinogenic dibenzylnitrosamine and an alpha-acetoxy derivative.

abstract：:The in vitro sensitivities to differentiating agents of a murine neuroblastoma cell line (N18) and a selected variant cell line (N18-LM5) were examined. In addition, the sensitivities to differentiating agents of cells from spontaneous metastases produced by N18 cells were examined. When N18 cells (1 X 10(5) cells/mou...

journal_title：Cancer letters

authors： Takenaga K

更新日期：1983-05-01 00:00:00

abstract：:Sprague-Dawley rats were injected weekly with either 1,2-dimethylhydrazine (DMH) or methylazoxymethanol acetate (MAM). Addition of 4 ppm selenium (sodium selenite) in the drinking water reduced the number of rats developing DMH-induced colon tumors from 13 to 6 groups of 15 each. The total number of tumors observed in...

journal_title：Cancer letters

authors： Jacobs MM,Jansson B,Griffin AC

更新日期：1977-01-01 00:00:00

abstract：:The Wnt signaling pathway has long been known to direct growth and patterning during embryonic development. Recent evidence also implicates this pathway in the development of childhood tumors of the liver, the kidney, the brain, and the pancreas. Here, we review the current evidence on how constitutive activation of t...

journal_title：Cancer letters

authors： Koesters R,von Knebel Doeberitz M

更新日期：2003-08-20 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：:Tumor tissues are chronically exposed to hypoxia owing to aberrant vascularity. Hypoxia induces metabolic alterations in cancer, thereby promoting aggressive malignancy and metastasis. While previous efforts largely focused on adaptive responses in glucose and glutamine metabolism, recent studies have begun to yield i...

journal_title：Cancer letters

authors： Povero D,Johnson SM,Liu J

更新日期：2020-11-28 00:00:00

abstract：:Breast carcinomas are frequently characterized by hyperactivated c-erbB receptor tyrosine kinase signaling. Combination of anti-proliferative retinoids with growth-inhibitory c-erbB-specific agents might induce therapeutic benefit. We demonstrate close interactions between the c-erbB and the retinoic acid receptor sys...

journal_title：Cancer letters

authors： Flicker SH,Schneider SM,Offterdinger M,Dittrich E,Fazeny B,Valenta R,Huber H,Dittrich C,Grunt TW

更新日期：1997-05-01 00:00:00

abstract：:Current limitation in cancer genomic studies is a lack of the integration of various omics data generated through next generation sequencing technologies, as well as a lack of the sounding and comprehensive epigenomic and genomic information about a particular cancer cell type. In this review, we will discuss main asp...

journal_title：Cancer letters

authors： Tang B,Hsu PY,Huang TH,Jin VX

更新日期：2013-11-01 00:00:00

abstract：:The ability to recognize and respond to universal molecular patterns on invading microorganisms allows our immune system to stay on high alert, sensing danger to our self-integrity. Our own damaged cells and tissues in pathological situations activate similar warning systems as microbes. In this way, the body is able ...

journal_title：Cancer letters

authors： Ratikan JA,Micewicz ED,Xie MW,Schaue D

更新日期：2015-11-28 00:00:00

abstract：:Telomerase plays an important role in the maintenance of telomere ends in normal and tumor cells and ectopic expression can immortalize human bronchial epithelial (HBE) cells. We assessed telomerase activation, growth properties and methylation status in the hTERT promoter in a panel of HBE cell cultures in relation t...

journal_title：Cancer letters

authors： Yim HW,Slebos RJ,Randell SH,Umbach DM,Parsons AM,Rivera MP,Detterbeck FC,Taylor JA

更新日期：2007-02-08 00:00:00

abstract：:Increased abundance of the mRNA-binding protein human antigen R (HuR) is a characteristic feature of many cancers and frequently associated with a high grade malignancy and therapy resistance. HuR elicits a broad cell survival program mainly by stabilizing or increasing the translation of mRNAs coding for anti-apoptot...

journal_title：Cancer letters

authors： Badawi A,Hehlgans S,Pfeilschifter J,Rödel F,Eberhardt W

更新日期：2017-05-01 00:00:00

abstract：:Adult T-cell leukemia (ATL) is a fatal malignancy caused by infection with human T lymphotropic virus type-1 (HTLV-1). To search for a new biomarker of ATL, we analyzed sera from ATL patients using ProteinChip arrays. The spectral comparison of ATL patients with HTLV-1 carriers and healthy volunteers showed that the i...

journal_title：Cancer letters

authors： Ishida Y,Yamashita K,Sasaki H,Takajou I,Kubuki Y,Morishita K,Tsubouchi H,Okayama A

更新日期：2008-11-18 00:00:00

abstract：:Because lipoperoxides seem able to modulate tumor growth, we have examined the concomitant effects of dietary antioxidant (vitamin E) and of a high amount of polyunsaturated fatty acids (PUFA) in a model of chemically-induced mammary carcinogenesis. Two groups of rats received a high fat diet with or without added vit...

journal_title：Cancer letters

authors： Lhuillery C,Cognault S,Germain E,Jourdan ML,Bougnoux P

更新日期：1997-03-19 00:00:00

abstract：:Breast cancer stem cells (BCSCs) initiate and sustain breast cancers, and several putative markers have been proposed to prospectively isolate BCSC from the non-cancer stem cell population. The candidate BCSC marker Sca-1 is a GPI-linked membrane protein expressed on activated lymphocytes, hematopoietic stem cells and...

journal_title：Cancer letters

authors： Matilainen H,Yu XW,Tang CW,Berridge MV,McConnell MJ

更新日期：2012-10-01 00:00:00

abstract：:We have developed an epithelial cell line derived from mouse liver which represents a spectrum of malignant progression. When inoculated into mice at low passage, the cells induced benign cysts; after extensive subcultures, the same line induced low grade adenocarcinomas. A variant of these cells with increased invasi...

journal_title：Cancer letters

authors： Dollbaum CM,Anderson LW,Smith HS

更新日期：1980-12-01 00:00:00

abstract：:Treatment of HeLa cells with the polyamine biosynthesis inhibitors difluoromethylornithine (DFMO) and/or methylglyoxal bis(guanylhydrazone) (MGBG) results in marked depression in levels of the cellular polyamines putrescine, spermidine and spermine. Cells in this polyamine-depleted state exhibited increased sensitivit...

journal_title：Cancer letters

authors： Snyder RD,Bhatt S

更新日期：1993-08-16 00:00:00

abstract：:The development of multidrug resistance (MDR) to chemotherapy remains a major challenge in the treatment of cancer. Numerous mechanisms have been recognized that cause MDR, but one of the most important mechanisms is overexpression of adenosine triphosphate (ATP)-binding cassette (ABC) transporters, through which the ...

journal_title：Cancer letters

authors： Fan YF,Zhang W,Zeng L,Lei ZN,Cai CY,Gupta P,Yang DH,Cui Q,Qin ZD,Chen ZS,Trombetta LD

更新日期：2018-05-01 00:00:00

abstract：:Since Shh pathway effector, Gli1, is overexpressed in gliomas, we investigated the effect of novel Shh inhibitor SANT-1 on glioma cell viability. Though SANT-1 failed to induce apoptosis, it reduced proliferation of glioma stem-like cells. Apart from canonical Shh cascade, Gli1 is also induced by non-canonical pathway...

journal_title：Cancer letters

authors： Dixit D,Ghildiyal R,Anto NP,Ghosh S,Sharma V,Sen E

更新日期：2013-08-19 00:00:00

abstract：:The environmental mutagens, 1-nitropyrene, 1,3-dinitropyrene, 1,6-dinitropyrene and 1,8-dinitropyrene were evaluated for their ability to initiate skin tumors in male and female SENCAR mice. 1-Nitropyrene (greater than 99.5% purity) did not induce papilloma formation over a dose range of 0-3.0 mg/mouse after 30 weeks ...

journal_title：Cancer letters

authors： Nesnow S,Triplett LL,Slaga TJ

更新日期：1984-05-01 00:00:00

abstract：:In Mongolian gerbils, the gastric mucosa shows dramatic changes after Helicobacter pylori inoculation. The influence of the timing of N-methyl-N-nitrosourea (MNU) administration after H. pylori inoculation on gastric carcinogenesis was investigated. Ninety-two gerbils were divided into four groups. One group was given...

journal_title：Cancer letters

authors： Maruta F,Sugiyama A,Ishida K,Ikeno T,Murakami M,Kawasaki S,Ota H,Tatematsu M,Katsuyama T

更新日期：2000-11-10 00:00:00

abstract：:In all organisms, heat-shock proteins (HSPs) provide an ancient defense system. These proteins act as molecular chaperones by assisting proper folding and refolding of misfolded proteins and aid in the elimination of old and damaged cells. HSPs include Hsp100, Hsp90, Hsp70, Hsp40, and small HSPs. Through its substrate...

journal_title：Cancer letters

authors： Kumar S,Stokes J 3rd,Singh UP,Scissum Gunn K,Acharya A,Manne U,Mishra M

更新日期：2016-04-28 00:00:00

abstract：:D-Tryptophan-6-luteinizing hormone-releasing hormone (D-Trp6-LH-RH) applied from day -8 to day +15 before and after administration of the nitrosourea analog, N,N'-bis[N-(2-chloroethyl)-N-nitrosocarbamoyl]cysteamine (CNCC), favored bone marrow restoration, as independently evaluated by 3 observers in a double-blind fas...

journal_title：Cancer letters

authors： Lemaigre G,Maral R,Bourut C,Chenu E,Blazsek I,Mauvernay Y,Schally AV,Mathé G

更新日期：1984-12-01 00:00:00

abstract：:Substantial evidence from epidemiological studies supports the inverse association between the intake of fruits, vegetables and other plant products and cancer incidence. Cancer-preventive constituents of fruits and vegetables may inhibit carcinogen activation, enhance carcinogen detoxification, prevent carcinogens fr...

journal_title：Cancer letters

authors： Tatman D,Mo H

更新日期：2002-01-25 00:00:00

abstract：:To better understand causative relations of smoking to lung adenocarcinomas, the frequency of loss of heterozygosity (LOH) of all autosomal chromosomes was compared among the three grades of histological differentiation with 119 pulmonary adenocarcinomas (AC) and 41 squamous cell carcinomas (SCC), using Southern blott...

journal_title：Cancer letters

authors： Ishikawa Y,Furuta R,Miyoshi T,Satoh Y,Okumura S,Nakagawa K,Tsuchiya E

更新日期：2002-12-10 00:00:00

abstract：:Ultrasound (US) has been shown to induce apoptosis and cell lysis in cancer cells. In this study, we report on the potential of using Sonazoid, a new echo-contrast agent, that is chemically more stable and US-resistant in combination with US in cancer therapy. The biological effects and their mechanisms in the presenc...

journal_title：Cancer letters

authors： Furusawa Y,Zhao QL,Hassan MA,Tabuchi Y,Takasaki I,Wada S,Kondo T

更新日期：2010-02-01 00:00:00

abstract：:Liposome encapsulation of anticancer agents results in reduced side effects of the entrapped drug and improved therapeutic efficacy. The external surface of the lipidic envelope can be coupled with antibodies directed against tumor-associated antigens. The resulting immunoliposomes allow to increase the therapeutic in...

journal_title：Cancer letters

authors： Brignole C,Marimpietri D,Pagnan G,Di Paolo D,Zancolli M,Pistoia V,Ponzoni M,Pastorino F

更新日期：2005-10-18 00:00:00

abstract：:scFv fragments of a monoclonal antibody that penetrates living cells and localizes in nuclei were designed as fusion proteins with C-terminal p53 peptides and tested for restoring p53 function in p53 mutant cancer cells. scFv fragments transported a 30-mer C-terminal peptide of p53 into cancer cells and induced cellul...

journal_title：Cancer letters

authors： Weisbart RH,Miller CW,Chan G,Wakelin R,Ferreri K,Koeffler HP

更新日期：2003-06-10 00:00:00

abstract：:Our previous studies demonstrated that dietary garlic powder supplementation inhibits N-nitrosamine induced DNA alkylation in liver and mammary tissue. The present studies compared the impact of dietary supplementation with garlic powder or two garlic constituents, water-soluble S-allyl cysteine (SAC) and oil-soluble ...

journal_title：Cancer letters

authors： Schaffer EM,Liu JZ,Green J,Dangler CA,Milner JA

更新日期：1996-04-19 00:00:00

abstract：:Aristolochic acid (AA), a component of some Chinese herbal medicines, may cause Chinese Herbs Nephropathy (CHN) and multi-systemic tumors by the formation of AA-DNA adducts. In this study, we established an animal model to further characterize the mechanisms of AA-induced diseases. Our results indicated that AA signif...

journal_title：Cancer letters

authors： Cheng CL,Chen KJ,Shih PH,Lu LY,Hung CF,Lin WC,Yesong Gu J

更新日期：2006-02-08 00:00:00

abstract：:The growth of a transplantable myeloid leukaemia into its syngeneic host is accompanied by a progressive increase in the number of blood monocytes. These were shown to be of host origin and were not derived from the inoculated leukaemia cells. The host response which is responsible for the monocytosis differs from tha...

journal_title：Cancer letters

authors： Gauci CL,Wrathmell A,Alexander P

更新日期：1975-09-01 00:00:00

abstract：:BRCA2-associated pancreatic ductal adenocarcinoma (PDAC) may be sensitive to agents that target homology-directed DNA repair, such as DNA crosslinking agents (DCLs) and PARP inhibitors (PARPis). Here, we assessed the sensitivities of BRCA2-deficient (Capan-1) and BRCA2-proficient (MIA PaCa-2) PDAC cell lines to a pane...

journal_title：Cancer letters

authors： Andrei AZ,Hall A,Smith AL,Bascuñana C,Malina A,Connor A,Altinel-Omeroglu G,Huang S,Pelletier J,Huntsman D,Gallinger S,Omeroglu A,Metrakos P,Zogopoulos G

更新日期：2015-08-01 00:00:00