Abstract:
:A diet high in linoleic acid (an ω-6 PUFA) increased the formation of miscoding etheno (ε)--DNA adducts in WBC-DNA of women, but not in men (Nair et al., Cancer Epidemiol Biomark Prev 1997;6:597-601). This gender specificity could result from an interaction between ω-6 PUFA intake and estrogen catabolism, via redox-cycling of 4-hydroxyestradiol (4-OH-E(2) ) and subsequent lipid peroxidation (LPO). In this study, we investigated whether in premenopausal women LPO-derived adducts in WBC-DNA are affected by serum concentration of 2- and 4-hydroxyestradiol metabolites and by fatty acid intake. DNA extracted from buffy coat and plasma samples, both blindly coded from healthy women (N = 124, median age 40 year) participating in the EPIC-Heidelberg cohort study were analyzed. Three LPO-derived exocyclic DNA adducts, εdA, εdC and M(1) dG were quantified by immuno-enriched (32) P-postlabelling and estradiol metabolites by ultra-sensitive GC-mass spectrometry. Mean M(1) dG levels in WBC-DNA were distinctly higher than those of εdA and εdC, and all were positively and significantly interrelated. Serum levels of 4-OH-E(2) , but not of 2-OH-E(2) , metabolites were positively related to etheno DNA adduct formation. Positive correlations existed between M(1) dG levels and linoleic acid intake or the ratios of dietary linoleic acid/oleic acid and PUFA/MUFA. Aerobic incubation of 4-OH-E(2) , arachidonic acid and calf thymus DNA yielded two to threefold higher etheno DNA adduct levels when compared with assays containing 2-OH-E(2) instead. In conclusion, this study is the first to compare M(1) dG and etheno-DNA adducts and serum estradiol metabolites in human samples in the same subjects. Our results support a novel mechanistic link between estradiol catabolism, dietary ω-6 fatty acid intake and LPO-induced DNA damage supported by an in vitro model. Similar studies in human breast epithelial tissue and on amplification of DNA-damage in breast cancer patients are in progress.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Sun X,Nair J,Linseisen J,Owen RW,Bartsch Hdoi
10.1002/ijc.27479subject
Has Abstractpub_date
2012-11-01 00:00:00pages
1983-90issue
9eissn
0020-7136issn
1097-0215journal_volume
131pub_type
杂志文章abstract::A case-control study of prostate cancer (PC) was undertaken in Athens, Greece. Cases were 320 patients with histologically confirmed incident disease, whereas controls were 246 patients without history or symptomatology of benign prostatic hyperplasia, treated in the same hospitals as the cases for minor diseases or c...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/(sici)1097-0215(19990301)80:5<699::aid-ijc
更新日期:1999-03-01 00:00:00
abstract::Many recent data indicate that some alleles encoded in the central major histocompatibility complex (MHC) region (Class III) of short arm of chromosome 6 may modify the risk of cancer development. Therefore we determined 4 single nucleotide polymorphisms (SNPs) of this region (TNF-alpha -308 G > A, RAGE -429 T > C, HS...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22922
更新日期:2007-10-15 00:00:00
abstract::We investigated whether variants in sex steroid hormone metabolism genes modify the effect of hormone therapy (HT) on endometrial cancer risk in postmenopausal non-Hispanic white women. A nested case-control study was conducted within the California Teachers Study (CTS). We genotyped htSNPs in six genes involved in th...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.26163
更新日期:2012-04-01 00:00:00
abstract::Immunization of mice with 10(6) irradiated LSTRA murine leukemia cells (LX) induced weak immunity to subsequent tumor-cell challenge. Admixture of low doses (1.4-14 micrograms of C. parvum with the LX usually augmented the immunity. Higher doses (1,400-7,000 micrograms) of admixed C. parvum not only failed to augment ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910290617
更新日期:1982-06-15 00:00:00
abstract::Non-small-cell lung cancers (NSCLC) are often infiltrated by T lymphocytes. It is postulated that the presence of tumor-infiltrating lymphocytes (TIL) reflects a local host immune response against autologous tumors. To identify the nature of NSCLC TIL, we have characterized the molecular structure of the TCRbeta chain...
journal_title:International journal of cancer
pub_type: 临床试验,杂志文章
doi:10.1002/(sici)1097-0215(19990412)81:2<205::aid-ijc
更新日期:1999-04-12 00:00:00
abstract::Approximately 80% of bladder tumors are urothelial superficial papillary carcinomas (USPC). Despite a generally good prognosis, these tumors have a strong propensity to recur and about 1/3 of them compared to disease progression. Histological assessment of these superficial tumors is not sufficiently discriminator in ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11049
更新日期:2003-06-10 00:00:00
abstract::Although several studies have investigated the association of miRNAs with hepatocellular carcinoma (HCC), the data published so far are not concordant. A reason for these discrepancies may be the fact that most studies used the nontumorous tissue surrounding the HCC lesion as a control, which is almost invariably affe...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28075
更新日期:2013-08-15 00:00:00
abstract::The paired-like homeodomain transcription factor 2 (PITX2), a downstream effector of wnt/β-catenin signaling, is well known to play critical role during normal embryonic development. However, the possible involvement of PITX2 in human tumorigenesis remains unclear. In this study, we extend its function in human esopha...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.27930
更新日期:2013-06-01 00:00:00
abstract::Data from a hospital-based matched case-control study with 531 male pairs were analyzed for risks of cancer of the lower urinary tract associated with previous employment and particular occupational exposures. Statistically significant odds ratios were obtained for ever-employment as mining workers (2.0), turners (2.3...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910410309
更新日期:1988-03-15 00:00:00
abstract::In experimental tumor immunotherapy, incomplete Freund's adjuvant (IFA) has been considered as the "gold standard" for T-cell vaccination in mice and humans in spite of its considerable adverse effects. Recently, we succeeded in eliciting strong CTL responses in mice after vaccination with biodegradable poly(D,L-lacti...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25914
更新日期:2011-07-15 00:00:00
abstract::Erythropoietin (Epo) regulates erythropoiesis by binding to its receptor (EpoR) and promoting cell proliferation, differentiation and inhibition of apoptosis. Epo is widely used to treat cervical cancer-related anaemia. However, there are data suggesting that administration of Epo is associated with an increment in re...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25935
更新日期:2011-12-01 00:00:00
abstract::OK-432, a streptococcal preparation, and BCG effectively inhibited splenomegaly in Friend leukemia virus (FLV)-infected mice. Divided drug dosage resulted in stronger inhibition than single administration. When the second dose was fixed at the 3rd pre-infection day, the best timing for the first dose was approximately...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910250117
更新日期:1980-01-15 00:00:00
abstract::Thrombin is now recognized as an important factor in many cancers. Here, we examined the expression and role of the recently discovered thrombin receptor PAR4, in human colon cancer cells. PAR4 mRNA was found in 10 out of 14 (71%) human colon cancer cell lines tested but not in epithelial cells isolated from normal hu...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.24070
更新日期:2009-04-01 00:00:00
abstract::The cis-2a,3-diol and the trans-4,5-, trans-7,8-, trans-9,10- and trans-11,12-dihydrodiols of 3-methylcholanthrene and the trans-3,4, trans-5,6-, trans-8,9. and trans-10,11- dihydrodiols of 7,12-dimethylbenz[a]anthrancene have been tested, in comparison with the parent hydrocarbons, for their abilities to initiate sk...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910240413
更新日期:1979-10-15 00:00:00
abstract::Over-expression of the HER2/neu (HER2) proto-oncogene in breast carcinoma imparts an enhanced metastatic potential. Metastasis requires escape of the tumor cell from the vasculature into subjacent tissue, a transmigration event across an endothelial cell (EC) monolayer. EC retraction has been reported to precede trans...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(200002)9999:9999<::aid-ijc1061>3
更新日期:2001-02-01 00:00:00
abstract::Inhibitors of matrix metalloproteinases (MMPs) were developed as anticancer agents based on the observation that MMPs facilitate local tumor spread and metastasis by promoting matrix degradation and cell migration. Unfortunately, these inhibitors were unsuccessful in the clinical treatment of several cancers, includin...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20997
更新日期:2005-08-10 00:00:00
abstract::Peripheral blood leukocytes from patients with confirmed pulmonary neoplasia were tested for cytotoxicity against cultured cells derived from lung tumours of various histological types, foetal and normal adult lung tissue and tumours arising in organs other than the lung. Leukocytes from 73 percent of patients were cy...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910150216
更新日期:1975-02-15 00:00:00
abstract::Folate is required for biological methylation and nucleotide synthesis, aberrations of which are thought to be the mechanisms that enhance colorectal carcinogenesis produced by folate inadequacy. These functions of folate also depend on the availability of other B-vitamins that participate in "one-carbon metabolism," ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23599
更新日期:2008-08-01 00:00:00
abstract::Renal-cell carcinomas (RCC) are clinically, histologically and cytogenetically very heterogeneous. The present histological WHO classification shows no clear correlation between histologic subtypes and specific chromosomal abnormalities. In 1986, a new classification was proposed by Thoenes and Störkel based on the ce...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910550210
更新日期:1993-09-09 00:00:00
abstract::Multiple myeloma (MM) is the second most common hematologic malignancy characterized by the clonal expansion of plasma cells. Despite continuing advances, novel biomarkers are needed for diagnosis and prognosis of MM. In our study, we characterized the diagnostic and prognostic potential of circulating microRNAs (miRN...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29199
更新日期:2015-04-15 00:00:00
abstract::Kidney cancer often diagnosed at late stages when treatment options are severely limited. Thus, greater understanding of tumor metabolism leading ultimately to novel approaches to diagnosis is needed. Our laboratory has been utilizing metabolomics to evaluate compounds appearing in kidney cancer patients' biofluids at...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.26274
更新日期:2012-06-15 00:00:00
abstract::The mode of transmission of human herpesvirus 8 (HHV8) was investigated in two seroepidemiological studies of Swedish women who completed a questionnaire about sexual behavior. Seropositivity for HHV8 antibodies, measured using an indirect immunofluorescence assay, was linked to a high number (>10) of sexual partners ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:
更新日期:2000-07-15 00:00:00
abstract::Matrix metalloproteinase 2 (MMP-2) plays a crucial role in invasion and metastasis of malignant tumors. Membrane type 1-MMP (MT1-MMP) was originally identified as an activator of MMP-2. Tissue inhibitor of MMP-2 (TIMP-2) was identified as an inhibitor of MMP-2 and MT1-MMP. However, TIMP-2 was reported to be essential ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(20010120)95:1<44::aid-ijc1008>3.
更新日期:2001-01-20 00:00:00
abstract::MM is a B-cell malignancy mainly characterized by monoclonal expansion of plasma cells in the BM, presence of paraprotein in serum and occurrence of osteolytic bone lesions. MMPs are a family of proteolytic enzymes that can contribute to cancer growth, invasion, angiogenesis, bone degradation and other processes impor...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10642
更新日期:2002-10-20 00:00:00
abstract::A subgroup of head and neck squamous cell carcinomas (HNSCCs) contains high-risk human papillomavirus-type 16 (HPV16). The viral E6 and E7 oncoproteins inactivate the p53 and pRb proteins, respectively. We examined the causative effect of HPV16 E6 and E7 expression on the immortalization of normal oral keratinocytes (...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25474
更新日期:2011-04-01 00:00:00
abstract::We have previously reported a complete allelotype study of 86 primary breast carcinomas, in which each non-acrocentric chromosome arm was studied with at least one polymorphic DNA-marker for the presence of allelic imbalance (AI, allelic loss or allelic gain) in the tumor. Here we report the statistical analysis of th...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910500408
更新日期:1992-02-20 00:00:00
abstract::The transcription factor grainyhead-like 2 (GRHL2) plays a crucial role in various developmental processes. Although GRHL2 recently has attracted considerable interest in that it could be identified as a novel suppressor of the epithelial-to-mesenchymal transition, evidence is emerging that GRHL2 also exhibits tumour-...
journal_title:International journal of cancer
pub_type: 杂志文章,meta分析
doi:10.1002/ijc.29841
更新日期:2016-02-15 00:00:00
abstract::We have employed the DNA-mediated gene transfer method to introduce the allogenic major-histocompatibility-complex(MHC)-class-I gene H-2Kb into the K36.16 tumor cells, H-2k, in order to generate tumor-specific immunity. The acquisition of immunogenicity by the H-2Kb-transformed clones following gene transfer is associ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910570215
更新日期:1994-04-15 00:00:00
abstract::Ganglioside functions in tumor metastasis were analyzed by carbohydrate remodeling of a mouse Lewis lung cancer (subline P29) by introducing beta1,4GalNAc-T cDNA. Although P29 was originally a low-metastatic subline in the s.c. injection system, it showed high potential in lung metastasis when i.v.-injected via the ta...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10797
更新日期:2003-01-10 00:00:00
abstract::Although the combination of cisplatin and etoposide has been used as standard therapy for small-cell lung cancer, it is difficult to demonstrate combination effects between cisplatin and etoposide in vitro. We therefore adopted a 3-dimensional (3-D) model to analyze the combination effects of anticancer drugs, and com...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970502)71:3<311::aid-ijc
更新日期:1997-05-02 00:00:00