Abstract:
:Endometrial serous adenocarcinoma (ESC) is aggressive and carries a poor prognosis. p53 is frequently mutated in ESC. microRNAs (miRNAs) are a direct p53 target and have been implicated in cancer cell behavior. In this study, we compared miRNA expression levels in ESC with the levels in endometrial endometrioid adenocarcinoma (EEC) and normal endometria. Six miRNAs were identified as having aberrant down-regulation specific to ESC with miR-34b being most pronounced. miR-34b was found to have promoter hypermethylation, which when reversed, restored miR-34b expression in the cell lines treated with 5-aza-2' deoxycytidine (DAC). Ectopic expression of miR-34b in turn inhibited cell growth, migration and most notably invasion. Our findings suggest a relationship among p53 mutation, miR-34b promoter methylation and tumor cell behavior. These effects are likely mediated by the downstream target of miR-34b, the proto-oncogene mesenchymal-epithelial transition factor (MET), a known prognostic factor in endometrial carcinomas. The expression of MET was reduced following the restoration of miR-34b in cell lines. In summary, our data suggest that miR-34b plays a role in the molecular pathogenesis of endometrial cancer.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Hiroki E,Suzuki F,Akahira J,Nagase S,Ito K,Sugawara J,Miki Y,Suzuki T,Sasano H,Yaegashi Ndoi
10.1002/ijc.27345subject
Has Abstractpub_date
2012-08-15 00:00:00pages
E395-404issue
4eissn
0020-7136issn
1097-0215journal_volume
131pub_type
杂志文章abstract::IgG binding to purified mouse mammary tumor virus (MuMTV) was quantitated by an enzyme-linked immunoassay (ELISA) using sera from patients with breast cancer or benign breast disease, or from healthy age-matched controls. Significantly greater binding (p<0.01) was found in breast-cancer-derived sera than in the other ...
journal_title:International journal of cancer
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abstract::Mutations of the p53 tumor-suppressor gene universally occur on exons 5-8 in human cancer. We analyzed these mutations in esophageal cancer tissue from 207 patients in China using 2 methods, single-strand conformation polymorphism (SSCP), one of the most frequently used methods, and the recently developed denaturing h...
journal_title:International journal of cancer
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abstract::Sulfotransferase (SULT) 1A1 detoxifies and bioactivates a broad spectrum of substrates including xenobiotics. It has been suggested that the SULT1A1 his (histidine) allele, which is caused by a his for arg (arginine) substitution due to a G-->A transition at codon 213, carries a significantly higher risk for women to ...
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abstract::Kaposi's sarcoma (KS) is a frequent complication of the acquired immunodeficiency syndrome (AIDS) in homosexual men. Risk factors for developing this malignancy are uncertain, other than immunosuppression and coinfection with human herpesvirus 8 (HHV-8). We therefore examined factors associated with KS in a cross-sect...
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journal_title:International journal of cancer
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journal_title:International journal of cancer
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abstract::The impact of a human papillomavirus (HPV) vaccine on development of cervical intraepithelial neoplasia grade 2-3 or adenocarcinoma in situ (CIN2-3/AIS) in women with ongoing HPV16 or 18 infections prevaccination is reported. Seventeen thousand six-hundred and twenty-two women aged 16-26 were enrolled in 1 of 2 random...
journal_title:International journal of cancer
pub_type: 杂志文章,随机对照试验
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journal_title:International journal of cancer
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journal_title:International journal of cancer
pub_type: 杂志文章,随机对照试验
doi:10.1002/ijc.23839
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abstract::Limited data are available on the carcinogenicity of smokeless tobacco products in organs other than the mouth. Snus is a smokeless tobacco product widely used in Norway. We studied 10,136 Norwegian men enrolled since 1966 in a prospective cohort study, 31.7% of whom were exposed to snus. The relative risk of pancreat...
journal_title:International journal of cancer
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doi:10.1002/ijc.20811
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abstract::Our previous clinicopathologic study revealed an inverse association of liver metastasis of colorectal cancer and stromal expression of matrix metalloproteinase-9 (MMP-9) or urokinase receptor (uPAR). This suggests that host cells, particularly macrophages, expressing matrix-degrading enzymes/factors could be protecti...
journal_title:International journal of cancer
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doi:10.1002/(sici)1097-0215(20000401)86:1<24::aid-ijc4
更新日期:2000-04-01 00:00:00
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journal_title:International journal of cancer
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abstract::A segment of 712 bases coding for part of the human stearoyl-CoA desaturase gene was made by polymerase chain reaction (PCR) using primers based on published rat cDNA sequences. The human PCR product was confirmed by DNA sequencing. It was next cloned into a vector from which anti-sense, highly radioactive RNA transcr...
journal_title:International journal of cancer
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journal_title:International journal of cancer
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更新日期:2003-04-10 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980209)75:4<649::aid-ijc
更新日期:1998-02-09 00:00:00
abstract::The open reading frames of the phosphoprotein pp58 (BMRFI) and the deoxyribonuclease (BGLF5) of the Epstein-Barr-virus (EBV) strain M-ABA were cloned in the baculovirus expression vectors pAc373 and pAc360 and expressed in the Spodoptera frugiperda (SF158) insect cells. The recombinant phosphoprotein pp58 expressed in...
journal_title:International journal of cancer
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doi:10.1002/ijc.2910480615
更新日期:1991-07-30 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
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journal_title:International journal of cancer
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abstract::Polymorphisms in DNA repair genes may be associated with differences in the repair capacity of DNA damage and may thereby influence an individual's susceptibility to smoking-related cancer. We investigated the association between the -93G-->A polymorphism in the hMLH1 gene and the risk of lung cancer in a Korean popul...
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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abstract::Moderate to high-dose radiotherapy is known to increase the risk of breast cancer. Uncertainties remain about the effects of low-dose chest X-rays, particularly in individuals at increased genetic risk. We analyzed case-control data from the Breast Cancer Family Registry. Self-reported data on therapeutic and diagnost...
journal_title:International journal of cancer
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abstract::The expression of the recently described rap genes, closely related in the effector region to the ras proto-oncogenes, was examined by Northern blot analysis in 41 primary human tumors. The structural and in vitro biological properties of the rap gene products suggest their possible antagonistic action in the same eff...
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