Abstract:
:Loss of imprinting (LOI) of insulin-like growth factor 2 (IGF2) is a common event in many cancers and typically activates the maternally silenced allele. The resulting biallelic IGF2 expression correlates strongly with the hypomethylation of a differentially methylated region (DMR) near its promoter. It has also been shown that IGF2 undergoes overexpression in human malignancies; nevertheless, this phenomenon and its link to aberrant DMR methylation have not been reported in colorectal cancer (CRC). The aim of this study was to determine the relationship between IGF2 LOI, overexpression and DMR hypomethylation in CRC. By analyzing IGF2 and H19 methylation in 97 primary CRC and 64 matched normal colorectal tissues, we have shown a significant correlation between IGF2 LOI and DMR hypomethylation of IGF2 and H19. Additionally, when analyzing Affymetrix expression data of 167 primary CRC tumors and 32 normal tissues, 15% of tumors showed marked IGF2 elevation. We further investigated if substantially elevated IGF2 levels were linked to IGF2 or H19 hypomethylation, but found no significant correlation. However, we demonstrated that noticeable IGF2 overexpression, rather than LOI, negatively correlated with CRC microsatellite instability. These observations indicate that IGF2 expression, particularly when transcribed at significantly high levels, is a result of mechanisms unrelated to LOI. Our results suggest that IGF2 participates in CRC tumorigenesis through 2 different forms of aberrant gene expression.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Cheng YW,Idrees K,Shattock R,Khan SA,Zeng Z,Brennan CW,Paty P,Barany Fdoi
10.1002/ijc.25086subject
Has Abstractpub_date
2010-08-01 00:00:00pages
568-77issue
3eissn
0020-7136issn
1097-0215journal_volume
127pub_type
杂志文章abstract::Understanding the reasons for nonparticipation in cancer screening may give clues about how to improve compliance. However, limited cooperation has hampered research on nonparticipant profiles. We took advantage of Sweden's comprehensive demographic and health care registers to investigate characteristics of all parti...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23208
更新日期:2008-04-01 00:00:00
abstract::We report here side population (SP) cells, a cancer stem cell enriched fraction from pancreatic cancer cell line, have enormous superior potential of the epithelial to mesenchymal transition (EMT), invasion, and metastasis. In an isolated SP cell culture, the cells rapidly expressed and up-regulated E-cadherin, an epi...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.24349
更新日期:2009-06-15 00:00:00
abstract::Tumour cell anaerobic metabolism has been reported to be a prognostic factor in colorectal cancer. The present study investigated the association between monocarboxylate transporter (MCT) 1, MCT 2, lactate dehydrogenase (LDH) 1 and LDH 5, the tumour microenvironment, and outcome in patients with colorectal cancer. A c...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32045
更新日期:2019-05-01 00:00:00
abstract::The majority of lung cancer patients have tumor-derived genetic alterations in circulating plasma DNA that could be exploited as a diagnostic tool. We used fluorescent microsatellite analysis to detect alterations in plasma and tumor DNA in 34 patients who underwent bronchoscopy for lung cancer, including 11 small cel...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11079
更新日期:2003-06-20 00:00:00
abstract::In a case-control study on lung cancer, risk was analysed in relation to smoking habits and frequency of vegetable and fruit consumption. Lung cancer cases in West Sweden and population controls were interviewed using a questionnaire where the frequency of consumption of dietary items and smoking habits were assessed....
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21384
更新日期:2006-02-01 00:00:00
abstract::Fluoropyrimidines induce cytotoxicity, in part, by inhibiting the proliferation-coordinated enzyme thymidylate synthase (TS), which is essential for DNA synthesis. Tumor TS levels are clinically predictive of post-surgical tumor recurrence and of response to fluoropyrimidine chemotherapy. Fluoropyrimidine drug toxicit...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:
更新日期:2000-11-01 00:00:00
abstract::Sexual behavior has been consistently identified as a major risk factor for cervical cancer. Population-based studies have demonstrated that risk related to sexual activity is mediated by human papillomavirus (HPV) infection. We conducted a case-control study of 199 cases with low-grade squamous intraepithelial lesion...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19960301)65:5<601::AID-IJC
更新日期:1996-03-01 00:00:00
abstract::Owing to their role in controlling the efflux of toxic compounds, transporters are central players in the process of detoxification and elimination of xenobiotics, which in turn is related to cancer risk. Among these transporters, ATP-binding cassette B1/multidrug resistance 1 (ABCB1/MDR1), ABCC2/multidrug resistance ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.26436
更新日期:2012-08-15 00:00:00
abstract::A panel of 7 mouse monoclonal antibodies and the lectin from Ulex europeus, detecting blood-group-related antigens of the ABH and Lewis systems, have been used to define the distribution of these antigenic structures within the human gastrointestinal tract, and to characterize their expression and modulation in colore...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910370505
更新日期:1986-05-15 00:00:00
abstract::The p16INK4a gene product acts as a negative regulator of the cell cycle by binding to cyclin-dependent kinases (CDKs) 4 and 6, thereby inhibiting the formation of an active CDK/cyclin D complex. Deletion of the p16 locus has been observed in tumor cell lines and, less frequently, in primary human neoplasms. We analyz...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970926)73:1<57::aid-ijc1
更新日期:1997-09-26 00:00:00
abstract::A glutamine analogue, L-glutamic acid gamma-monohydroxamate (GAH) demonstrated complete cytotoxicity against L1210 cells in culture and marked anti-tumoral activity in vivo against L1210 leukemia and B16 melanoma. In vitro, GAH caused concentration-dependent inhibition of L1210 cell growth, with complete cell death be...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910450428
更新日期:1990-04-15 00:00:00
abstract::Regression of EB-virus-induced transformation occurs exclusively in cultures of leukocytes from seropositive donors. Studies have shown that the strength of regression could be assayed in terms of the proportion of T cells which must be added to the autologous EB virus-infected T-cell-depleted population in order to e...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910230505
更新日期:1979-05-15 00:00:00
abstract::Extranodal, nasal NK/T-cell lymphomas are regularly Epstein-Barr virus (EBV)-positive, with a type II latency pattern, expressing thus EBNA-1 and LMP1. The contribution of EBV to the tumor development is not known. Similarly to normal natural killer (NK) cells, cell lines derived from malignancies with a NK phenotype ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22139
更新日期:2006-12-15 00:00:00
abstract::The assessment of tumor molecular features in combination with the detection of occult malignant cells may provide important clinical information, beyond the standard staging of breast cancer. Using a nested RT-PCR technique, we assessed prospectively the presence of cytokeratin-19 (CK19) mRNA positive cells in the bl...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11593
更新日期:2004-02-10 00:00:00
abstract::Lung cancer is one of the greatest threats to human health, and is initially detected and attacked by the immune system through tumor-reactive T cells. The aim of this study was to determine the basic characteristics and clinical significance of the peripheral blood T-cell receptor (TCR) repertoire in patients with ad...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32145
更新日期:2019-09-01 00:00:00
abstract::Trilaciclib is an intravenous CDK4/6 inhibitor administered prior to chemotherapy to preserve haematopoietic stem and progenitor cells and immune system function from chemotherapy-induced damage (myelopreservation). The effects of administering trilaciclib prior to carboplatin, etoposide and atezolizumab (E/P/A) were ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33453
更新日期:2020-12-21 00:00:00
abstract::Effects of 12-O-tetradecanoyl phorbol 13-acetate (TPA) and the hepatic peroxisome proliferators (HPPs) clofibrate, methyl clofenapate (MCP), di(2-ethylhexyl)phthalate (DEHP) and mono(2-ethylhexyl)phthalate (MEHP) were studied in 2 gap junctional intercellular communication (GJIC) systems, metabolic cooperation in V79 ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19971009)73:2<240::aid-ijc
更新日期:1997-10-09 00:00:00
abstract::Cells of the melanocytic lineage have been shown to be capable of producing laminin and to lose this property during transformation. In the present study, we have evaluated immunohistochemically whether these changes are paralleled by an altered expression of the alpha 6/beta 1 laminin receptor. Results of this analys...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910490203
更新日期:1991-09-09 00:00:00
abstract::The sister chromatid exchange (SCE) rates of cell lines derived from patients with different malignant and premalignant disease were studied before and after intracerebral inoculation into nude mice and were compared to the SCE frequencies of cell lines from healthy controls. Lymphoma lines characterized by chromosoma...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910280408
更新日期:1981-10-15 00:00:00
abstract::The results from the population-based cancer registry for the city of Ho Chi Minh in 1995-1996 represent the first information on the incidence of cancer in southern Viet Nam. A total of 4,080 cancer cases in males and 4,338 in females were registered, corresponding to age-standardized incidence rates (ASRs) of 130.9 ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980518)76:4<472::aid-ijc
更新日期:1998-05-18 00:00:00
abstract::Accurate survival estimates are essential for monitoring cancer survival trends, for health care planning and for resource allocation. To obtain precise estimates of survival, full dates (day, month and year) rather than partial dates (month and year) are required. In some jurisdictions, however, cancer registries are...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.27545
更新日期:2012-10-01 00:00:00
abstract::N-deformyl-N-[4-N,N-bis(2-chloroethylamino)benzoyl] distamycin-A (FCE 24517) is a new cytotoxic anti-tumor agent in phase-1 clinical trials. We have isolated stable FCE-24517-resistant cell sublines from murine leukemia L1210 cells by in vitro exposure to the drug. FCE 24517 selects a mixed population of resistant cel...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910530223
更新日期:1993-01-21 00:00:00
abstract::Knowledge about the prevalence of human papillomavirus (HPV) on a population level is important. We conducted a large population-based study in Denmark to determine the overall and age-specific HPV prevalence, and HPV type distribution in women. Liquid-based cytology samples (SurePath) were collected consecutively. HP...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23712
更新日期:2008-10-15 00:00:00
abstract::It has been debated whether the reported increased risk of Hodgkin's lymphoma (HL) after tonsillectomy could be due to some underlying factor rather than the surgery itself. We studied whether not only tonsillectomy but also tonsillitis was associated with HL. This nationwide cohort study included all Danish residents...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.24973
更新日期:2010-08-01 00:00:00
abstract::We aimed to identify risk factors for Kaposi's sarcoma (KS) among HIV-positive patients and behaviors associated with human Herpesvirus 8 (HHV-8) infection, as well as to assess KS incidence and mortality rates longitudinally. To fulfill the first objective, a European case-control study was designed in the early 1990...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/ijc.22281
更新日期:2007-03-01 00:00:00
abstract::To evaluate the relation between the degree of lymph node metastasis and the growth potential of tumour cells and the local immune function in gastric cancer, we analyzed data on 444 patients with advanced serosally invasive gastric cancer who underwent curative gastrectomy. Tumour growth potential was evaluated based...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970422)74:2<224::aid-ijc
更新日期:1997-04-22 00:00:00
abstract::The expression of the nuclear SV40-induced T antigen was measured by microfluorimetry on individual, asynchronously growing SV40-transformed cells which had been stained with hamster T-antiserum by the indirect immunofluorescence method. The same individual cells were first measured for T antigen and then for DNA by F...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910150403
更新日期:1975-04-15 00:00:00
abstract::Salvicine is a diterpenoid quinone derived from a traditional Chinese medication that has been shown to possess potent in vitro and in vivo antitumor effects. This compound, which inhibits the activity of Topoisomerase II, was found to equipotently kill various multidrug-resistant tumor cells and their corresponding p...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20026
更新日期:2004-07-10 00:00:00
abstract::In order to examine whether or not the expression of the apoptosis-related receptor Fas (CD-95/APO-1) and its ligand (FasL) has relevance for patient survival, immunohistochemistry was used to analyze the proteins of both factors in 164 non-small cell lung carcinomas. Patients with Fas-positive tumors exhibited signif...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990621)84:3<239::aid-ijc
更新日期:1999-06-21 00:00:00
abstract::Development of targeted therapeutics is still at its early stage for hepatocellular carcinoma (HCC) due to the incomplete understanding of the confounding regulations at signaling pathway level. In this investigation, gene co-expression-based networking and integrative functional genomic modeling of HCC mRNA profiles ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.30195
更新日期:2016-10-01 00:00:00