Abstract:
:In a previous study, human ZNF312b was identified as a cell proliferation-associated oncogene via the K-ras/extracellular signal-regulated kinase cascade in gastric cancer. However, the mechanism concerning its transcriptional activation remains unknown. Here, we show that DNA methylation and histone acetylation of the ZNF312b promoter function as a switch for ZNF312b transcriptional activation in gastric cancer. The transcription level of ZNF312b was increased by treatment with a demethylating agent, 5-aza-2'-deoxycytidine and the histone deacetylase inhibitor sodium butyrate, in several human cancer cell lines including gastric cancer. Consistent with these results, epigenetic analysis, such as pyrosequencing, bisulfate sequencing and methyl-specific polymerase chain reaction (MSP), showed that the expression level of ZNF312b is highly dependent on the degree of DNA methylation in gastric cancer cell lines. In addition, by ChIP assay using anti-acetyl/methyl H3K9 antibodies, histone acetylation was shown to mediate the expression of the ZNF312b gene. Interestingly, ChIP assay using the Sp1 antibody revealed that the binding of transcription factor Sp1 to the ZNF312b promoter for its transcriptional activation requires DNA demethylation and histone acetylation. Moreover, a knockdown of Sp1 resulted in a decrease in ERK-mediated proliferation via downregulation of the ZNF312b gene in gastric cancer cells. Taken together, these results suggest that the aberrant expression of ZNF312b promotes gastric tumorigenesis through epigenetic modification of its promoter region and provides a molecular mechanism for ZNF312b expression to contribute to the progression of gastric cancer.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Song IS,Ha GH,Kim JM,Jeong SY,Lee HC,Kim YS,Kim YJ,Kwon TK,Kim NSdoi
10.1002/ijc.25871subject
Has Abstractpub_date
2011-11-01 00:00:00pages
2124-33issue
9eissn
0020-7136issn
1097-0215journal_volume
129pub_type
杂志文章abstract::The 1100delC mutation of the cell cycle checkpoint kinase 2 (CHEK2) gene confers an increased risk for breast cancer, but the clinical impact of other CHEK2 gene variants remains unclear. We determined the frequency of two functionally relevant CHEK2 gene mutations, I157T and IVS2+1G > A, in two large series of breast...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21022
更新日期:2005-08-20 00:00:00
abstract::BPV-1 induces focus formation in murine C127 cells and fibropapillomas in bovine fetal skin xenografts. In this study, we compared the specificity of neutralization of BPV-1 in both assay systems, using sera and monoclonal antibodies (MAbs) selected to define neutralizing epitopes. Sera from rabbits and cattle, inocul...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910490224
更新日期:1991-09-09 00:00:00
abstract::Adherent cells with the ability to inhibit NK activity were found in the spleens of young 8-week-old SJL/J mice. Such suppressor cells were also found in the spleens of other low-NK-reactive strains, but not in the spleen of age-matched high-NK-reactive strains. These suppressor cells had the characteristics of macrop...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910280621
更新日期:1981-12-01 00:00:00
abstract::GC-binding factor 2 (GCF2), a transcriptional repressor that decreases the activity of several genes is capable of binding directly to the GC-rich sequence of the EGFR promoter and repressing the transcriptional activity of EGFR. In addition to its function as a transcriptional repressor, GCF2 can directly interact wi...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25837
更新日期:2011-10-01 00:00:00
abstract::Histone deacetylase (HDAC) inhibitors, such as valproic acid (VPA), constitute a novel class of anticancer agents that cause an increase in acetylated histones and thus restore the expression of dormant tumor-suppressor and other genes related to cell differentiation, cell-cycle arrest or apoptosis of tumor cells. The...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25367
更新日期:2011-02-01 00:00:00
abstract::APC10.1 is a new intestinal cell line derived from ApcMin/+ mice that retains both the heterozygous Apc genotype and a nonactivated Wnt signaling pathway and displays an early neoplastic phenotype. Although tumorigenic both in immunodepressed and in immunocompetent syngeneic mice, it requires a high cell dose and a lo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11690
更新日期:2004-03-20 00:00:00
abstract::Signal transduction pathways controlling tumor cell locomotion are not yet well understood. We have studied the role of protein kinase C (PKC)-dependent protein phosphorylation associated with changes in cell shape and locomotor activity of Walker carcinosarcoma cells in culture. We show that the inhibitory effect of ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19960208)65:4<473::AID-IJC
更新日期:1996-02-08 00:00:00
abstract::The EMS1 gene encodes an 80/85 kDa c-src substrate and localises with the CCND1 gene to chromosome 11q13. This locus is amplified in approximately 13% of human breast cancers. EMS1 gene amplification and expression were characterised in a panel of human breast cancer cell lines to determine at what levels expression i...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19961115)68:4<485::AID-IJC
更新日期:1996-11-15 00:00:00
abstract::Galectin-1 and galectin-3 are galactoside-binding proteins involved in different steps of tumor progression and potential targets for therapy. We have investigated the expression of these galectins in 38 human bladder transitional-cell carcinomas of different histological grade and clinical stage and in 5 normal uroth...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990219)84:1<39::aid-ijc8
更新日期:1999-02-19 00:00:00
abstract::We performed microsatellite analysis and tested telomerase activity in paired tissue and urine of bladder cancer patients from frozen archived samples. DNA obtained from microdissected tumor and urine sediment was analyzed and compared to peripheral lymphocytes for microsatellite alterations (loss of heterozygosity [L...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19971219)74:6<625::aid-ijc
更新日期:1997-12-19 00:00:00
abstract::Childhood brain tumors (CBT) are the leading cause of cancer death in children, yet their etiology remains largely unknown. Tobacco smoke contains 61 known carcinogens and increases the risk of several adult cancers. This study investigated associations between parental smoking and risk of CBT in a population-based ca...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28004
更新日期:2013-07-01 00:00:00
abstract::A major objective of peptide vaccination is the induction of tumor-reactive CD8+ T-cells. We have shown that HLA-A2 positive cancer patients frequently develop an antigen-specific CD8+ T-cell response after vaccination with NY-ESO-1 peptides p157-165/p157-167. These T-cells are highly reactive with the peptides used f...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22957
更新日期:2007-11-01 00:00:00
abstract::The major obstacle preventing effective treatment of melanoma is the biological heterogeneity of tumor cells. This study was performed to determine clonal genetic heterogeneity within primary melanoma and the evolution of these heterogeneous sub-clones during disease progression. DNA samples were obtained from 44 morp...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:
更新日期:2000-02-15 00:00:00
abstract::Spontaneous tumor development and primary oncogenesis were compared in a large number of NK4-deficient, homozygous C57Bl/6-bg/bg mice and their NK normal, heterozygous +/bg littermate controls. In a group of 167 retired breeders followed for spontaneous tumors, the probability of survival for mice eventually dying wit...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910350414
更新日期:1985-04-15 00:00:00
abstract::Epithelial ovarian cancer is the most lethal gynecological malignancy and the fifth leading cause of cancer deaths in women in the Western world. ETS transcription factors are known to act as positive or negative regulators of the expression of genes that are involved in various biological processes, including those t...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.26148
更新日期:2012-04-01 00:00:00
abstract::Using data from a large health plan, we performed a cohort study of thyroid cancer among 204,964 persons (aged 10--89 at baseline in 1964--1973, 54% female) followed for a median of 20 years. There were 196 incident thyroid cancers (73 in men, 123 in women). Risk was independently and positively related to female gend...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1377
更新日期:2001-09-01 00:00:00
abstract::The diagnostic specificity of the detection of disseminated prostatic cells by reverse-transcriptase polymerase chain reaction (RT-PCR) of PSA mRNA was investigated. A sensitive nested PCR was developed. In blood samples from 10 healthy female and 10 healthy male persons examined by RT-PCR, mRNA of PSA was detected 3 ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970106)70:1<52::aid-ijc8
更新日期:1997-01-06 00:00:00
abstract::The expression of two discrete cell properties related to the host natural effector mechanisms, i.e., resistance to damage by H2O2, a cytotoxic product of activated macrophages, and the ability to secrete PGE, which inhibits NK-cell cytotoxicity, has been examined in parental Syrian hamster embryo cells spontaneously ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910440526
更新日期:1989-11-15 00:00:00
abstract::Cancers occurring at the gastroesophageal junction (GEJ) are classified as predominantly esophageal or gastric, which is often difficult to decipher. We hypothesized that the transcriptomic profile might reveal molecular subgroups which could help to define the tumor origin and behavior beyond anatomical location. The...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32384
更新日期:2019-12-15 00:00:00
abstract::Apoptin is a chicken anemia virus-derived, p53-independent, bcl-2-insensitive apoptotic protein with the ability to specifically induce apoptosis in tumor cells. To explore the use of the Apoptin gene in cancer gene therapy, we constructed a recombinant fowlpox virus expressing the Apoptin protein (vFV-Apoptin) and co...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22215
更新日期:2006-12-15 00:00:00
abstract::Seminomas and control tissues were analyzed for several tumor markers. Very high levels of placental alkaline phosphatase (PLAP)-like enzyme levels were found in all 18 seminomas studied. The majority of the seminomas were of phenotype I, thus differing from palcental PLAP. The mean amount of enzyme protein as measure...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910400507
更新日期:1987-11-15 00:00:00
abstract::Low levels of anti-viral activity, mainly interferon alpha/beta (IFN-alpha/beta), are regularly found in lymphoid tissues of BALB/c mice infected with the C3H strain of mammary tumor virus. At the time of tumor development, significant amounts of anti-viral activity were detected in homogenates of spleen and mammary t...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910510620
更新日期:1992-07-30 00:00:00
abstract::Use of hormone replacement therapy (HRT) has been hypothesized to affect survival of epithelial ovarian cancer (EOC). We studied 5-year survival in patients with invasive EOC and borderline ovarian tumors (BOT) according to HRT use before and after diagnosis in a prospective nation-wide cohort study of 799 women diagn...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22218
更新日期:2006-12-15 00:00:00
abstract::We have studied the production and release of cholecystokinin (CCK) forms by rat medullary thyroid cancer (MTC) in vivo. MTC cells were inoculated s.c. into 8 Wag-Rij rats. One month later, after i.v. injection of calcium plasma levels of CCK, calcitonin and tissue contents of gastrin and calcitonin were determined by...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910480510
更新日期:1991-07-09 00:00:00
abstract::Ninety-seven Japanese patients with so-called primary non-Hodgkin's lymphoma of the central nervous system (CNS-NHL), unrelated to the acquired immunodeficiency syndrome (AIDS) or organ transplantation, were reviewed. The patients' ages ranged from 1 to 87 years (median: 58 years) with a male to female ratio of 1.77:1...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910450410
更新日期:1990-04-15 00:00:00
abstract::We previously demonstrated that leptin, an adipose-derived hormone, induces cell proliferation in a model of preneoplastic (IMCE (Apc(Min/+)), but not normal (YAMC (Apc(+/+)), colon epithelial cells by inducing autocrine IL-6 production and trans-IL-6 signaling. Low serum adiponectin is associated with colon, prostate...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23436
更新日期:2008-06-01 00:00:00
abstract::Fatty acids play a key role in cellular bioenergetics, membrane biosynthesis and intracellular signaling processes and thus may be involved in cancer development and progression. In the present study, we comprehensively assessed associations of 14,522 common single-nucleotide polymorphisms (SNPs) in 149 genes of the f...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32194
更新日期:2019-11-15 00:00:00
abstract::We reported that tumor endothelial cells (TECs) differ from normal endothelial cells (NECs) in many aspects, such as gene expression profiles. Although CXCR7 is reportedly highly expressed in blood vessels of several tumors, its function in TECs is still unknown. To investigate this role, we isolated TECs from mouse t...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29655
更新日期:2015-12-15 00:00:00
abstract::Increasing evidence indicates the importance of the tumor microenvironment, in particular cancer-associated fibroblasts, in cancer development and progression. In our study, we developed a novel, visually based method to identify new immunohistochemical signatures of these fibroblasts. The method employed a protein li...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28035
更新日期:2013-07-15 00:00:00
abstract::The role of miRNAs with tumor suppressive activity in liver cancer has been well studied. However, little is known about potential oncomiRs in HCC. In our study, we conducted a systematic evaluation of candidate oncomiRs and found that upregulation of miR-18a and miR-25 in HCC was associated with poor patient survival...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.31857
更新日期:2019-01-15 00:00:00