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 inhibited TPA-promoted transformation in a dose-dependent manner. Most of them achieved a 70-80% inhibition. Good correlations were observed between the inhibition of TPA-promoted transformation and that of 5-LO. These results indicate that 5-LO plays an important role in the promotion stage of the transformation of BALB 3T3 cells.
journal_name
Cancer Lettjournal_title
Cancer lettersauthors
Semba M,Honda I,Shibagaki M,Nishi Ydoi
10.1016/0304-3835(93)90097-ssubject
Has Abstractpub_date
1993-07-30 00:00:00pages
57-60issue
1-3eissn
0304-3835issn
1872-7980pii
0304-3835(93)90097-Sjournal_volume
71pub_type
杂志文章相关文献
CANCER LETTERS文献大全abstract::D-501036 is a promising anti-cancer compound that exhibits potent anti-proliferative activity against various types of human cancers through the induction of double strand DNA breaks. To determine drug resistance mechanism related to this class of DNA-damaging agents, a KB-derived D-501036-resistant cell line (S4) was...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2011.05.023
更新日期:2011-10-01 00:00:00
abstract::Mutations in the ERK pathway occur in approximately one-third of all human cancers and most often involve production of mutant RAS or BRAF. Several studies, including our own, have shown that mutations in the BRAF and RAS genes are generally mutually exclusive. This study was performed to determine the relative oncoge...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2007.10.033
更新日期:2008-03-18 00:00:00
abstract::The chimeric transcripts described in endometrial stromal sarcomas (ESS) are JAZF1/SUZ12, YWHAE/FAM22, ZC3H7/BCOR, MBTD1/CXorf67, and recombinations of PHF1 with JAZF1, EPC1, and MEAF6. The MEAF6/PHF1 fusion had hitherto been identified in only one tumor. We present two more ESS with MEAF6/PHF1 detected by transcripto...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2014.01.030
更新日期:2014-05-28 00:00:00
abstract::Tissue transglutaminase is a calcium-dependent enzyme which may influence cell morphology, cytoskeletal processes and membrane functions. During rat brain carcinogenesis induced by transplacental administration of N-ethyl-N-nitrosourea to BD IX rats, cytosolic tissue transglutaminase activity was increased by about 14...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(99)00049-x
更新日期:1999-06-01 00:00:00
abstract::Since angiogenesis is considered essential for tumor growth and the development of metastasis, we assessed the correlation of microvessel density (MVD) with overall survival in patients with epithelial ovarian cancer. Histologic slides were immunostained for CD34-antigen. MVD was determined within each tumor by enumer...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(99)00005-1
更新日期:1999-04-26 00:00:00
abstract::The human multidrug resistance ABC transporters provide a protective function in our body against a large number of toxic compounds. These proteins, residing in the plasma membrane, perform an active, ATP-dependent extrusion of such xenobiotics. However, the same proteins are also used by the tumor cells to fight vari...
journal_title:Cancer letters
pub_type: 杂志文章,评审
doi:10.1016/j.canlet.2005.01.061
更新日期:2006-03-08 00:00:00
abstract::Long non-coding RNAs (lncRNAs) play critical roles in multiple cellular processes in non-small cell lung cancer (NSCLC); however, the involvement of lncRNAs in the transforming growth factor-beta (TGFβ) signaling pathway, the critical tumor cell epithelial-mesenchymal transition (EMT) and metastasis pathway, remains p...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2018.06.013
更新日期:2018-09-28 00:00:00
abstract::The identification of the breast cancer susceptibility genes BRCA1 and BRCA2 a few years ago has been greeted with great excitement and has raised hopes that they might illuminate the common mechanisms of this disease. Today we have to recognize that these expectations remain unfulfilled. Mutations in BRCA1 and BRCA2 ...
journal_title:Cancer letters
pub_type: 杂志文章,评审
doi:10.1016/s0304-3835(01)00752-2
更新日期:2002-01-10 00:00:00
abstract::Ten non-synonymous single nucleotide polymorphisms (nsSNPs), which were recently associated with colorectal cancer risk in a comprehensive, array based study (AKAP9 M463I, DKK3 G335R, AMPD1 Q12X, LIPC L356F, PSMB9 V32I, THBS1 N700S, CA6 S90G, ASCC3 C1995S, DHX36 S416C and CPA4 G303C) were re-evaluated in the present s...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2008.05.043
更新日期:2008-11-18 00:00:00
abstract::Liver cancer is an extraordinarily heterogeneous malignant disease among the tumors that have so far been identified. Hepatocellular carcinoma (HCC) arises most frequently in the setting of chronic liver inflammation and fibrosis, and takes a variety of course in individual patients to process to tumor. The risk facto...
journal_title:Cancer letters
pub_type: 杂志文章,评审
doi:10.1016/j.canlet.2015.07.018
更新日期:2016-09-01 00:00:00
abstract::The selectivity of photodynamic therapy (PDT) derived from the tailored accumulation of photosensitizing drug (photosensitizer; PS) in the tumor microenvironment (TME), and from local irradiation, turns it into a "magic bullet" for the treatment of resistant tumors without sparing the healthy tissue and possible adver...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2020.07.007
更新日期:2020-11-01 00:00:00
abstract::The present study was conducted to investigate protein levels of inducible NO synthase (iNOS) and cayclooxygenase-2 (COX-2) in human colon cancer tissues. Significant increase of iNOS and COX-2 levels in tumors as compared to paired normal tissue was observed in 15 and 28, respectively, of 29 cases investigated. No co...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2005.08.014
更新日期:2006-08-08 00:00:00
abstract::Glioblastoma multiforme (GBM), a malignant brain tumor, is the deadliest form of human cancer with low survival rates because of its highly invasive nature. In recent years, there has been a growing appreciation for the role that glioblastoma stem cells (GSCs) play during tumorigenesis and tumor recurrence of GBM. GSC...
journal_title:Cancer letters
pub_type: 杂志文章,评审
doi:10.1016/j.canlet.2018.05.007
更新日期:2018-08-10 00:00:00
abstract::Viscum album L. (VAL) is a phytopreparation used in adjuvant cancer therapy with both immunostimulatory and DNA stabilizing properties at low drug concentrations and cytostatic/cytotoxic properties at higher concentrations. The present work examines the cytotoxic effects of VAL extracts produced from mistletoes grown ...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(95)04038-2
更新日期:1996-01-19 00:00:00
abstract::Vitamin C has been suggested and disputed as an anti-cancer agent. Previous in vitro studies using either primary cell cultures from cancer patients or tumor cell lines have suggested that tumor cells with different lineages may have different sensitivities to ascorbic acid. In this study we report characterization of...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(93)90080-s
更新日期:1993-06-15 00:00:00
abstract::Epigenetic disruption of tumor suppressor genes (TSGs), particularly DNA methylation, plays a key role in hepatocellular carcinoma (HCC) pathogenesis. Through methylome study, we identified BCLB as a methylated gene in HCC. BCLB was methylated in all tumor cell lines with silenced or reduced expression. BCLB was furth...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2017.02.030
更新日期:2017-06-01 00:00:00
abstract::Classical Hodgkin lymphoma (cHL) tumor cells are surrounded by a protective tumor microenvironment (TME). Trabectedin, an anticancer drug targeting both tumor cells and TME, demonstrated a potent antitumor activity against Hodgkin Reed Sternberg (HRS) cells. It was cytotoxic against cHL cell lines, including the doxor...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2020.12.015
更新日期:2021-03-01 00:00:00
abstract::Oncogenic transformation of mouse C3H10T1/2 cells induced by X-rays was suppressed in the presence of extract of Rooibos tea, Aspalathus linealis. Transformation was reduced with increased concentration of the extract, so that at an extract concentration of 10%, transformation incidence was similar to the spontaneous ...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(94)90344-1
更新日期:1994-02-28 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
pub_type: 杂志文章
doi:10.1016/s0304-3835(96)04546-6
更新日期:1997-01-15 00:00:00
abstract::The activity of 4 enzymes involved in the formation and interconversion of folate coenzymes has been examined in liver and kidney of healthy and Ehrlich ascites carcinoma-bearing mice. In the liver, a 50% increase of methylenetetrahydrofolate reductase activity was shown soon after tumour cell inoculation, while the a...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(84)80048-8
更新日期:1984-12-01 00:00:00
abstract::The in vitro chemosensitizing effect of triptolide (PG490) on the cytotoxicity of 5-fluorouracil (5-FU) was determined in three colorectal cancer (CRC) cell lines. PG490 alone was toxic to CRC cell lines (IC(50)s: 1.39-5.51nM). The cytotoxicity of 5-FU to CRC cell lines was 4-15-fold sensitized by combining use of low...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2009.10.013
更新日期:2010-05-28 00:00:00
abstract::Birt-Hogg-Dubé (BHD) syndrome is a rare inherited genodermatosis characterized by benign hamartomatous skin lesions and an increased risk of pneumothorax and renal tumors. Many of the patients harbor insertion/deletion mutations in the hypermutable poly(C)(8) tract in exon 11 of the BHD gene. This mutational hot spot ...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2006.06.005
更新日期:2007-04-08 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
pub_type: 杂志文章,评审
doi:10.1016/j.canlet.2015.07.044
更新日期:2016-09-28 00:00:00
abstract::Pseudogenes are a subclass of long non-coding (lnc) RNAs that arose from protein-coding genes, but have lost the ability to produce proteins. Pseudogenes play an important role in the pathogenesis of various tumors; however, the role of pseudogenes in hepatocellular carcinoma (HCC) is poorly understood. In this study,...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2017.07.031
更新日期:2017-10-28 00:00:00
abstract::Oral treatment with reduced glutathione for 10 weeks has no effect on the development of tumours from aflatoxin B1-induced gamma-glutamyl transpeptidase-positive pre-neoplastic focal lesions. ...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(83)90086-1
更新日期:1983-11-01 00:00:00
abstract::Glioblastoma multiforme (GBM) is one of the most aggressive human tumors with poor prognosis. Current standard treatment includes chemotherapy using DNA alkylating agent temozolomide (TMZ) concomitant with surgical resection and/or irradiation. However, GBM patients exhibit various levels of the elevated expression of...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2012.12.005
更新日期:2013-04-30 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
pub_type: 杂志文章
doi:10.1016/j.canlet.2012.03.028
更新日期:2012-10-01 00:00:00
abstract::Cancer stem cells (CSCs) are a small subpopulation of tumor cells critical for tumor development. Their unique abilities, such as self-renewal, have resulted in tumor resistance to various cancer treatments, including traditional chemotherapy and latest immunotherapy. CSCs-targeting therapy is a promising treatment to...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2020.11.010
更新日期:2021-03-01 00:00:00
abstract::Multidrug-resistant MCF-7 breast adenocarcinoma cells (originally named MCF-7/AdrR cells and later re-designated NCI/ADR-RES) have served as an important and widely used research tool during the last two decades. However, the real identity of these cells has been in doubt since 1998 and has since been debated. The ori...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2006.01.013
更新日期:2007-01-08 00:00:00
abstract::Receptors for all classes of steroid hormones were identified in cytosols of adenocarcinoma of the lung. In contrast, the incidence of receptor in squamous cell carcinoma was limited and small cell carcinomas appeared devoid of receptor. Receptor binding was of high affinity, saturable and localized to the 8, 6-7 and ...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(82)90014-3
更新日期:1982-09-01 00:00:00