Abstract:
:Embryonal tumors such as Wilms' tumor (WT), embryonal rhabdomyosarcoma (eRMS) and hepatoblastoma have been thought to have a common pathogenetic mechanism. H19 was found to be inactivated in WT and eRMS either by loss of heterozygosity or by hypermethylation of the maternal allele. We show here that the expression of the H19 gene is inactivated by maternal allelic loss or hypermethylation in 7 out of 8 "sporadic" hepatoblastomas. Furthermore, we analyzed expression of the IGF2 gene. Loss of imprinting of the IGF2 gene was detected and linked to inactivation of the H19 gene in 2 hepatoblastomas. However, 2 sporadic cases demonstrated monoallelic expression of the IGF2 gene with inactivation of the H19 gene. Our results suggest that H19 may play a role as a common imprinted tumor suppressor gene in "sporadic" hepatoblastomas but may at times work independently of IGF2 expression.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Fukuzawa R,Umezawa A,Ochi K,Urano F,Ikeda H,Hata Jdoi
10.1002/(sici)1097-0215(19990812)82:4<490::aid-ijckeywords:
subject
Has Abstractpub_date
1999-08-12 00:00:00pages
490-7issue
4eissn
0020-7136issn
1097-0215pii
10.1002/(SICI)1097-0215(19990812)82:4<490::AID-IJCjournal_volume
82pub_type
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(20000815)87:4<512::aid-ijc8>3.0.
更新日期:2000-08-15 00:00:00
abstract::Photodynamic therapy using 5-aminolevulinic acid (5-ALA)-induced protoporphyrin IX is a promising tool in bladder-cancer therapy. However, little is known about the cellular mechanisms of phototoxicity. Our aim was to characterize the cellular damage and to optimize differential photodynamic effectiveness between tumo...
journal_title:International journal of cancer
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更新日期:2001-06-01 00:00:00
abstract::Increasing evidences indicate that CXCR4/CXCL12 signaling pathway plays a pivotal role in the process of distant site metastasis that accounts for more than 90% of prostate cancer related deaths in patients. Thus, novel drugs that can downregulate CXCR4/CXCL12 axis have a great potential in the treatment of metastatic...
journal_title:International journal of cancer
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journal_title:International journal of cancer
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abstract::Studies of colon cancer risk in males have reported strong positive associations with obesity, particularly with central adiposity. The association has been weaker and less consistent for women. In a prospective cohort study of women, body measurements were taken directly; fat mass and fat-free mass being estimated by...
journal_title:International journal of cancer
pub_type: 杂志文章
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更新日期:2006-03-15 00:00:00
abstract::Transforming growth factor-beta (TGFbeta1) enhances human MDA-MB-231 breast tumour cell invasion of reconstituted basement membrane in vitro but does not inhibit proliferation of this cell line. In contrast to basal invasion, which is plasmin-, urokinase (uPA)-, tissue-type plasminogen activator (t-PA)-, matrix metall...
journal_title:International journal of cancer
pub_type: 杂志文章
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更新日期:1998-03-02 00:00:00
abstract::This work demonstrates the need for the continued presence of lipopolysaccharide (LPS) for tumor necrosis factor (TNF) production by thioglycollate-induced peritoneal macrophages. Removal of LPS at any time resulted in the abrupt cessation of further TNF production. The readdition of LPS resulted in further production...
journal_title:International journal of cancer
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abstract::Exercise has been shown to reduce risk and improve prognosis of several types of cancers. Irisin is a myokine linked to exercise and lean body mass, which is thought to favorably alter metabolism systemically, potentially providing benefit for metabolic disease (including cancer). We evaluated the effects of various c...
journal_title:International journal of cancer
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doi:10.1002/ijc.29142
更新日期:2015-02-15 00:00:00
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journal_title:International journal of cancer
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更新日期:2007-06-01 00:00:00
abstract::The aim of this study was to assess the diagnostic performance of breast imaging in the diagnosis of breast cancer in a non-screening population. In a consecutive set of patients referred for mammography in one year, the results of palpation and radiological breast imaging were scored on a 5-point grading scale and li...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1235
更新日期:2001-05-15 00:00:00
abstract::We show that siRNA-mediated suppression of protein tyrosine phosphatase alpha (PTP alpha) reduces Src activity 2 to 4-fold in breast, colon and other human cancer cell lines. Src and PTP alpha RNAi induced apoptosis in estrogen receptor (ER)-negative breast cancer and colon cancer cells, but not in immortalized noncan...
journal_title:International journal of cancer
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doi:10.1002/ijc.23321
更新日期:2008-05-01 00:00:00
abstract::The purpose was to evaluate alternative cytological screening methods in population-based screening for cervical cancer up to cancer incidence and mortality outcome. Automation-assisted screening was compared to conventional cytological screening in a randomized design. The study was based on follow-up of 503,391 wome...
journal_title:International journal of cancer
pub_type: 杂志文章,随机对照试验
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更新日期:2011-03-01 00:00:00
abstract::We have established a number of cell lines from Merkel cell carcinoma (MCC) of the skin. In many respects these cell lines resemble those established from small cell lung cancer (SCLC) and it is difficult to differentiate between metastatic MCC and SCLC on morphological or histochemical criteria. Both are thought to b...
journal_title:International journal of cancer
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更新日期:1994-07-15 00:00:00
abstract::The cellular tumor suppressor p16 is strongly overexpressed in cervical cancers and precancers. We have previously demonstrated that infiltrating T lymphocytes reactive against p16 can be found in cervical cancer patients. Here, we analyzed whether p16 induces humoral immune responses. Sera of patients with cervical c...
journal_title:International journal of cancer
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更新日期:2008-12-01 00:00:00
abstract::The Epstein-Barr virus nuclear antigen I (EBNA I) is the only latent EBV antigen consistently expressed in malignant tissues of the nasopharynx. A 20-amino-acid synthetic peptide, p107 contains a major epitope of EBNA I. We tested sera from 210 patients with nasopharyngeal carcinoma (NPC) and from 128 normal individua...
journal_title:International journal of cancer
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doi:10.1002/ijc.2910450614
更新日期:1990-06-15 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20983
更新日期:2005-08-10 00:00:00
abstract::A series of 111 human bladder tumors were screened using oligonucleotide mutant specific probes, restriction enzyme analysis and single-stranded confirmation polymorphism (SSCP) for the presence of H-ras activation events. Thirty-three tumors were found to harbor H-ras mutations where a glycine to valine (G-->T) chang...
journal_title:International journal of cancer
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doi:10.1002/ijc.2910550516
更新日期:1993-11-11 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
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journal_title:International journal of cancer
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journal_title:International journal of cancer
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journal_title:International journal of cancer
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更新日期:1992-04-22 00:00:00
abstract::LiSa-2 is a stable cell line derived from a poorly differentiated, pleomorphic liposarcoma. In serum-containing medium, LiSa-2 cells are fibroblastoid and rapidly dividing. In a serum-free, chemically defined culture medium containing physiological concentrations of insulin, triiodothyronine and cortisol, LiSa-2 cells...
journal_title:International journal of cancer
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doi:10.1002/1097-0215(20001215)88:6<889::aid-ijc8>3.0.
更新日期:2000-12-15 00:00:00
abstract::The variants within the human melanocortin 1 receptor (MC1R) gene are associated with an increased risk of different skin cancers. In this study, we genotyped by direct sequencing, 529 cases of basal cell carcinoma of the skin (BCC) and 533 healthy controls for polymorphisms in the entire MC1R gene. In addition to 10 ...
journal_title:International journal of cancer
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更新日期:2008-04-15 00:00:00
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journal_title:International journal of cancer
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更新日期:2007-06-01 00:00:00
abstract::Antibodies to HTLV-I have been detected in sera from 15 (2.0%) of 736 adult blood-donors in Nigeria, in 4 (20.0%) of 20 patients with chronic lymphatic leukaemia, 3 (10.0%) of 30 with non-Hodgkin's lymphoma, one of 12 with Burkitt's lymphoma and one of 7 with acute lymphoblastic leukaemia. The frequency of positivity ...
journal_title:International journal of cancer
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journal_title:International journal of cancer
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更新日期:1992-02-20 00:00:00
abstract::Use of herbal preparations containing Aristolochia species has led to progressive nephropathy and urothelial cancer in humans. Analysis of DNA adducts formed in human target tissues and studies in animal models have pointed out a major role of the secondary plant metabolites, aristolochic acids, in these effects. Only...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21480
更新日期:2006-03-01 00:00:00
abstract::In 584 consecutive patients with no previous history of cancer or polypectomy, 769 adenomas were excised endoscopically and classified retrospectively according to the following parameters: macroscopic growth pattern, size, histological type, grade of dysplasia, anatomical site, presence of adenocarcinoma (ADK), numbe...
journal_title:International journal of cancer
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