Abstract:
:Etiological risk factors for proximal (right-sided) colon cancers may be different to those of distal colon and rectal (left-sided) cancers if these tumors develop along distinct pathways. The CpG Island Methylator Phenotype (CIMP+) occurs in approximately 15% of colorectal cancers (CRC) and predominantly in the proximal colon. CIMP+ tumors have frequent methylation of gene promoter regions and increased tissue folate levels. The aim here was to determine whether polymorphisms in 2 genes involved in cellular methyl group metabolism were associated with different risks for right- and left-sided CRC. This population-based case-control study involved 859 incident cases of CRC and 973 sex and age-matched controls. Information on dietary folate and alcohol intake was obtained from food frequency questionnaires and information on the anatomical site of tumors from pathology reports. DNA was collected using FTA cards and genotyping performed for the MTHFR C677T and DeltaDNMT3B C-149T polymorphisms. The MTHFR 677 T allele was associated with increased risk for proximal colon cancer (adjusted odds ratio, AOR = 1.29) but decreased risk for distal cancers (AOR = 0.87). The increased risk for proximal cancers was especially pronounced in older individuals (AOR = 1.49) and those with a low folate diet (AOR = 1.67) or high alcohol consumption (AOR = 1.90). The DeltaDNMT3B-149 TT genotype was protective against proximal colon cancers (AOR = 0.65), but showed no association with the risk of distal colon and rectal cancers (AOR = 1.02). Epidemiological studies on dietary and genetic risk factors for CRC should take into account these may confer different risks for right- and left-sided tumors.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Iacopetta B,Heyworth J,Girschik J,Grieu F,Clayforth C,Fritschi Ldoi
10.1002/ijc.24324subject
Has Abstractpub_date
2009-07-01 00:00:00pages
84-90issue
1eissn
0020-7136issn
1097-0215journal_volume
125pub_type
杂志文章abstract::We showed earlier that interferon-gamma is a powerful inducer of differentiation of human neuroblastoma (NB) cells. Although 2',5' oligo-adenylate synthetase (2,5 OAS) may play a role in mediating the anti-proliferative and/or differentiative effects of interferons (IFNs), direct evidence is lacking. We have investiga...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910620219
更新日期:1995-07-17 00:00:00
abstract::We evaluated whether regular mammographic screening of women aged 65 years or older affected breast cancer mortality. In Nijmegen, a population-based screening program for breast cancer was started in 1975, with biennial mammography for women aged 35-64 years. Since 1977, elderly women have also been participating. Fo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19960611)66:6<727::AID-IJC
更新日期:1996-06-11 00:00:00
abstract::MYCN and insulin-like growth factor (IGF) system are important for the pathogenesis and development of neuroblastoma. We previously reported evidence of a direct linkage between MycN and the IGF system in KP-N-RT human neuroblastoma cells, where IGF-I induced both MycN expression at the RNA level and G1-S cell cycle p...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10914
更新日期:2003-03-20 00:00:00
abstract::High BCAR1/p130Cas expression in primary breast tumour cytosol predicts a poor chance of response recurrent disease to tamoxifen treatment in patients with oestrogen receptor (ER)-positive breast carcinomas. In this study, we assessed whether BCAR1/p130Cas expression is altered during acquisition of anti-oestrogen res...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(20000920)89:5<465::aid-ijc11>3.0
更新日期:2000-09-20 00:00:00
abstract::Incidence rates of Wilms' tumor (WT) markedly differ in East Asian and Caucasian children. In the present study, we examined WT1 deletions/mutations and loss of heterozygosity (LOH) on 11p and 11q in a large number of WTs and compared our findings with those from 4 series of Caucasian WTs. Incidence rates of the subtl...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1475
更新日期:2001-11-01 00:00:00
abstract::Treatment of older mice with pyran copolymer, a known interferon-inducer, was found to result in a rapid boosting of cell-mediated cytolytic activity against YAC-1 tumor target cells. The effector cells were characterized as being non-adherent and were presumed to be natural killer (NK) cells. Augmentation occurred in...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910240520
更新日期:1979-11-15 00:00:00
abstract::Telomerase appears to be an important factor for the control of cellular proliferation capacity and for tumorigenesis. Enzyme activity is highly increased in almost all human tumors and distinguishes them from benign lesions. Besides its diagnostic value, telomerase activity appears to be associated with tumor progres...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980220)79:1<8::aid-ijc2>
更新日期:1998-02-20 00:00:00
abstract::Polyamines are essential for cell growth and differentiation. Their specific uptake contributes to the regulation of intracellular polyamine levels. In this study, we describe the modulation of this transport mechanism in a rat tumoral pancreatic acinar cell line (AR4-2J) and analyze the transport system characteristi...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910490418
更新日期:1991-10-21 00:00:00
abstract::The study of the relationship between dietary intake of fatty acids and the risk of breast cancer has not yielded definite conclusions with respect to causality, possibly because of methodological issues inherent to nutritional epidemiology. To evaluate the hypothesis of possible protection of n-3 polyunsaturated fatt...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19991126)83:5<585::aid-ijc
更新日期:1999-11-26 00:00:00
abstract::The colo-rectum and stomach are the 2 sites for which the role of diet in the etiology of cancer is most heavily implicated. Quantitative estimates as to the proportion of cancer deaths attributable to diet vary considerably. This may be partially due to the application of the concept of population attributable risk w...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910400509
更新日期:1987-11-15 00:00:00
abstract::There is a great need to identify new and better prognostic and predictive biomarkers to stratify prostate cancer patients for optimal treatment. The aims of this study were to characterize the expression profile of pre-B cell leukemia homeobox (PBX) transcription factors in prostate cancer with an emphasis on investi...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.30220
更新日期:2016-10-15 00:00:00
abstract::The insulin-like growth factors (IGF-I and IGF-II) play a key role in cellular proliferation and are involved in cellular transformation. The expression of the IGF-I receptor has been demonstrated in a variety of human tumor cell lines including ovarian cancer cells. Phosphorothioate antisense oligodeoxynucleotides (S...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980812)77:4<567::aid-ijc
更新日期:1998-08-12 00:00:00
abstract::Carcinoma-associated fibroblasts (CAFs) play a key onco-supportive role during prostate cancer (PCa) development and progression. We previously reported that the reactive oxygen species (ROS)-producing enzyme NADPH oxidase 4 (Nox4) is essential for TGFβ1-mediated activation of primary prostate human fibroblasts to a C...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.31316
更新日期:2018-07-15 00:00:00
abstract::The mutated in colorectal cancer (MCC) is a multifunctional gene showing loss of expression in colorectal and liver cancers. MCC mutations can drive colon carcinogenesis in the mouse and in vitro experiments suggest that loss of MCC function promotes cancer through several important cellular pathways. In particular, t...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28967
更新日期:2015-01-01 00:00:00
abstract::The high recurrence rate of bladder cancer is probably due to an efficient repopulation of the bladder by residual transformed cells after resection of the tumour. However, the regenerating capacity of the normal urothelial cells is very high. To study the balance between regenerating normal urothelium and out-growth ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910600523
更新日期:1995-03-03 00:00:00
abstract::Tumors can induce the generation and accumulation of immunosuppressive cells such as myeloid-derived suppressor cells (MDSCs) in a tumor microenvironment, contributing to tumor escape from immunological attack. Although dendritic cell-based cancer vaccines can initiate antitumor immune responses, tumor-educated dendri...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.30002
更新日期:2016-06-01 00:00:00
abstract::The glycoprotein 90K was originally described as a tumor-secreted antigen and subsequently found to have immunostimulatory activity as well as other possible functions. This protein interacts with an endogenous lectin, galectin-3, and may play a role in tumor metastasis through this interaction. Because 90K is heavily...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(200002)9999:9999<::aid-ijc1022>3
更新日期:2001-01-15 00:00:00
abstract::Anti-idiotypic antibodies that mimic tumour-associated antigens can stimulate anti-tumour T-cell responses. In this article, we have studied the role of Fc in the presentation of T-cell epitopes by 2 anti-idiotypic antibodies, 105AD7 and 708. The human monoclonal antibody 105AD7, which mimics CD55, stimulated strong i...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1194
更新日期:2001-05-01 00:00:00
abstract::To assess the excess risk of HPV-associated cancer (HPVaC) in two at-risk groups-women with a previous diagnosis of high grade cervical intraepithelial neoplasia (CIN3) and both men and women treated for non-cervical pre-invasive anogenital disease. All CIN3 cases diagnosed in 1989-2015 in Scotland were extracted from...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32126
更新日期:2019-07-15 00:00:00
abstract::Breast cancer is the cancer diagnosed most frequently in women worldwide. In Europe it is the most common cancer in the female population, with approximately 350,000 new cases diagnosed each year including 130,000 deaths. Incidence rates are increasing in the majority of European countries, whereas a decline in mortal...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20514
更新日期:2004-12-20 00:00:00
abstract::The water-soluble scavengers ascorbic acid (Asc), cysteine (Cys), glutathione (GSH) and uric acid (UA) as well as DNA content were determined in 40 breast tissue samples (neoplastic and non-neoplastic tissues from 20 patients). To allow proper homogenization to take place, a fixed number of sections was cut from a tis...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910410509
更新日期:1988-05-15 00:00:00
abstract::This study investigates the role of tumor nitric oxide (NO) and vascular regulation in tumor ulceration following high-dose tumor necrosis factor-alpha (TNF) treatment. Using TNF-responsive (MethA) and nonresponsive (LL2) mouse tumors, tumor NO concentration was measured with an electrochemical sensor and tumor blood ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23499
更新日期:2008-07-15 00:00:00
abstract::Human conventional renal cell carcinoma (CCC) remains resistant to current therapies. Focal Adhesion Kinase (FAK) is upregulated in many epithelial tumors and clearly implicated in nearly all facets of cancer. However, only few reports have assessed whether FAK may be associated with renal tumorigenesis. In this study...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29522
更新日期:2015-10-01 00:00:00
abstract::The cystine/glutamate antiporter, system xc- , is essential for the efficient uptake of cystine into cells. Interest in the mechanisms of system xc- function soared with the recognition that system xc- presents the most upstream node of ferroptosis, a recently described form of regulated necrosis relevant for degenera...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33262
更新日期:2020-12-01 00:00:00
abstract::Increasing use of heavy ions for cancer therapy and concerns from exposure to heavy charged particles in space necessitate the study of the basic biological mechanisms associated with exposure to heavy ions. As the most critical damage induced by ionizing radiation is DNA double strand break (DSB), this review focuses...
journal_title:International journal of cancer
pub_type: 杂志文章,评审
doi:10.1002/ijc.26445
更新日期:2012-03-01 00:00:00
abstract::Endometriosis is a common gynecologic disease, which generally follows a benign course. Notwithstanding, several clinical and histologic studies as well as molecular data show that endometriosis could be a precursor of sporadic endometrioid and clear cell carcinomas at extrauterine loci. Several reports have implicate...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10715
更新日期:2002-12-01 00:00:00
abstract::Prolonged culture of hepatocytes isolated from mouse liver results in the spontaneous development of colonies of liver epithelial cells that can proliferate indefinitely in vitro. We established 5 such cell lines from C3H/HeJ mice (C3H) and 22 cell lines from C3H/HeJ x C57BL/6J F1 mice (C3B6F1) to investigate whether ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910590120
更新日期:1994-10-01 00:00:00
abstract::HPV35 has been found in only ∼2% of invasive cervical cancers (ICC) worldwide but up to 10% in Sub-Saharan Africa, warranting further investigation and consideration of impact on preventive strategies. We studied HPV35 and ethnicity, in relation to the known steps in cervical carcinogenesis, using multiple large epide...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33033
更新日期:2020-11-15 00:00:00
abstract::To estimate the annual incidence of adult T-cell leukemia/lymphoma (ATL) by district in Japan, a large-scale nationwide survey of ATL and of non-Hodgkin's lymphoma was performed in 1988. Questionnaires for the registration of ATL and of T-cell and non-T-cell lymphoma were distributed to the physicians in charge of thi...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910450206
更新日期:1990-02-15 00:00:00
abstract::Chicken anemia virus viral protein 3 (VP3 or apoptin) localizes more efficiently in the nucleus of transformed than nontransformed cells. Although previous studies implicate the C-terminus of apoptin as being responsible, the molecular basis is controversial, and the extent to which altered nuclear transport efficienc...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23884
更新日期:2008-12-15 00:00:00