Abstract:
PURPOSE:To discover new molecular targets for cancer therapy and diagnosis, we surveyed signal transducers and activators of transcription 3 (Stat3)-regulated genes, because constitutive activation of Stat3 is associated with a wide variety of human malignancies. METHODS:We investigated the Stat3-regulated genes in 293 cells with cDNA microarray analysis and found that Nicotinamide N-methyltransferase (NNMT) was induced on stimulation of the cells with leukemia inhibitory factor. We examined the expression of NNMT in several types of cancer cells by real-time quantitative RT-PCR. To examine the role of Stat3, Hep-G2 hepatocellular carcinoma cells were transfected with NNMT promoter-luciferase reporter construct together with conditionally active Stat3 (Stat3ER) or dominant-negative Stat3 expression vector and NNMT promoter activity was determined. The expression of NNMT and activated Stat3 in 88 colon cancer tissues and 17 normal colon tissues was examined with immunohistochemical analysis. RESULTS:In Hep-G2 cells and SW480 colon cancer cells, NNMT expression increased on stimulation of the cells with interleukin 6. NNMT promoter activity in Hep-G2 cells was dependent on the activation of Stat3. MDA-MB-468 breast cancer cells and HT29 colon cancer cells expressed constitutively a high level of NNMT. Treatment of these cells with Stat3 siRNA or curcumin, which inhibited Stat3 phosphorylation, resulted in reduction of the NNMT level. We found a correlation between the expression of NNMT and activated Stat3 (P<0.001) in the colon cancer tissues. CONCLUSION:NNMT is a novel Stat3-regulated gene. Its expression is enhanced with the activation of Stat3 in colon cancer tissues. NNMT may be a potential candidate for a tumor marker of various kinds of cancers.
journal_name
J Cancer Res Clin Oncoljournal_title
Journal of cancer research and clinical oncologyauthors
Tomida M,Ohtake H,Yokota T,Kobayashi Y,Kurosumi Mdoi
10.1007/s00432-007-0318-6subject
Has Abstractpub_date
2008-05-01 00:00:00pages
551-9issue
5eissn
0171-5216issn
1432-1335journal_volume
134pub_type
杂志文章abstract::The effect of beta-cyclodextrin-benzaldehyde (CDBA) on experimental pulmonary metastasis in C3H/He mice was examined. In an in vitro assay, the growth of RCT(+) cells was inhibited by 1200 micrograms/ml CDBA using unrenewed media, and by 600 micrograms/ml CDBA in that using daily renewed media. When mice were treated ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF00395915
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abstract::Synergy of folinic acid and FU has been shown in several experimental systems. In the present study we examined the kinetics of concurrent administration of folinic acid on the kinetics of FU in an in vivo model. Folinic acid significantly increased the amount of FU bound to the TS complex. In the sequential combinati...
journal_title:Journal of cancer research and clinical oncology
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journal_title:Journal of cancer research and clinical oncology
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doi:10.1007/s00432-005-0020-5
更新日期:2005-10-01 00:00:00
abstract::The carcinogenicity of long-term feeding of masheri extract to animals in a vitamin-A-sufficient (SLO+) and deficient (SLO-) state was studied in Sprague Dawley rats by feeding daily dose of 3 mg extract over a period of 21 months. The phase I activating enzymes, the glutathione (GSH)/glutathione S-transferase (GST) d...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-002-0400-z
更新日期:2003-02-01 00:00:00
abstract:INTRODUCTION:Kaposi's Sarcoma (KS) is a malignant neoplasm arising from endothelial cells. HHV8-infection represents a key pathogenic determinant for the development of KS. There are no standard criteria to treat KS in immunosuppressed-individuals. Six cases (2.1%) of KS occurred in our Center among 285-recipients who ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-007-0329-3
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:The PI3K pathway controls diverse cellular processes including growth, survival, metabolism, and apoptosis. Nuclear FOXO factors were observed in cancers that harbor constitutively active PI3K pathway output and stem signatures. FOXO1 and FOXO3 were previously published to induce stem genes such as OCT4 in e...
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-002-0332-7
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journal_title:Journal of cancer research and clinical oncology
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journal_title:Journal of cancer research and clinical oncology
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doi:10.1007/BF00411342
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abstract::The human histiocytic cell line U 937, which expresses a number of monocyte markers and properties, was investigated with regard to its ability to be activated for NO and tumor necrosis factor (TNF) release after treatment with alkylphosphocholines (APC) and APC liposomes. Using APC multilamellar vesicles (MLV) a clea...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01225687
更新日期:1995-01-01 00:00:00
abstract:PURPOSE:The precise determination of energy metabolites is challenged by the heterogeneity of their distribution, their rapid changes after surgical resection and the architectural complexity of malignancies. Induced metabolic bioluminescence imaging (imBI) allows to determine energy metabolites in tissue sections and ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-016-2200-x
更新日期:2016-09-01 00:00:00
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-002-0374-x
更新日期:2002-10-01 00:00:00
abstract::DNA repair is an important process. It is as essential for the cell as is transcription and replication. There is evidence that deficient DNA repair processes lead to human disease including cancer, and recent progress in the field of DNA repair is likely to expand our knowledge about these relationships considerably....
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章,评审
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更新日期:1990-01-01 00:00:00
abstract:PURPOSE:PIK3CA mutation appears to predict a lack of response to anti-EGFR monoclonal antibody (mAb) treatment in patients with metastatic colorectal cancer (mCRC). However, the predictive value of PIK3CA mutations for survival remains inconclusive. Here, we pooled the data from published studies to estimate the associ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章,meta分析
doi:10.1007/s00432-013-1400-x
更新日期:2013-05-01 00:00:00
abstract:PURPOSE:Protein inhibitors of activated STATs (PIAS) regulate the interferon-gamma (IFN-gamma) signaling pathway, which has numerous effects on tumor development and tumor cell biology. PIAS's also regulate STAT family members not directly involved in IFN-gamma signaling. This project was designed to assess PIAS1 expre...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-009-0570-z
更新日期:2009-09-01 00:00:00
abstract::Increased expression of P glycoprotein is associated with multidrug resistance in many cell lines. P glycoprotein has been detected in different human tumors. To assess the implication of multidrug resistance in the prognosis of Ewing's sarcoma the expression of P glycoprotein was studied immunohistochemically in pre-...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01624429
更新日期:1993-01-01 00:00:00
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journal_title:Journal of cancer research and clinical oncology
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doi:10.1007/s00432-014-1667-6
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章,评审
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-008-0520-1
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-014-1766-4
更新日期:2014-12-01 00:00:00
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00432-010-0958-9
更新日期:2011-06-01 00:00:00
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF00391702
更新日期:1989-01-01 00:00:00
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-008-0396-0
更新日期:2008-11-01 00:00:00
abstract::The laboratory findings in patients receiving high-dose vitamin A as adjuvant treatment for stage I lung cancer are here reported. A group of 283 patients were randomized to either treatment with retinyl palmitate (300,000 IU daily for 12 months) or standard follow-up, and are now evaluable after a median observation ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF01613140
更新日期:1991-01-01 00:00:00
abstract:PURPOSE:The objective was to compare the prognostic factors and outcomes among primary ovarian cancer (OC), fallopian tube cancer (FC), and peritoneal cancer (PC) patients in a population-based setting. METHODS:We analysed 5399 OC, 327 FC, and 416 PC patients diagnosed between 1998 and 2014 in the catchment area of th...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-017-2422-6
更新日期:2017-09-01 00:00:00
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-014-1656-9
更新日期:2014-07-01 00:00:00
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-016-2205-5
更新日期:2016-09-01 00:00:00
abstract::Mice with s.c. grafts of gastric carcinoma MKN45 or osteosarcoma 788T were injected i.v. with recombinant tumour necrosis factor alpha (rTNF alpha) and tumour blood flow rates were determined 4 h later as a fraction of the cardiac output g tissue-1. With MKN45, the tumour blood flow rate was significantly reduced from...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01613286
更新日期:1991-01-01 00:00:00
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journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-008-0433-z
更新日期:2009-01-01 00:00:00