Abstract:
:The aim of this study was to investigate STK15 amplification in histologically benign urothelium and invasive tumor tissue of urothelial bladder cancer patients in relation to clinicopathologic and molecular characteristics, and to analyze a hypothesized association between the STK15 single nucleotide polymorphism at site T91A (Phe31Ile) and STK15 gene amplification. A tissue microarray (TMA) was constructed and contained formalin-fixed paraffin-embedded tumor tissue and matching histologically benign urothelium of 44 patients who underwent cystectomy for invasive urothelial carcinoma. Expression of TP53, CK20 and MIB1 was evaluated by immunohistochemistry. UroVysion and STK15 fluorescence in situ hybridization (FISH) analysis was performed for sensitive detection of polysomy, relative p16 deletion and STK15 amplification, respectively. Genotypes of STK15 at the T91A (Phe31Ile) site were analyzed by PCR-RFLP assay. Low level STK15 amplification was found in 2 of 36 analyzable histologically benign urothelium specimens (5.6%) and in 64% (28/44) of urothelial bladder cancers, whereas 36% (16/44) of cancer lesions showed high level of STK15 amplification. In histologically benign urothelium of bladder cancer patients, low level STK15 amplification was associated with shorter recurrence-free and tumor-specific survival. There was no correlation between allelic variants and high/low level of STK15 gene amplification. Applying STK15 FISH to benign urothelium of bladder cancer patients may help to identify patients at increased risk for adverse clinical outcome. A large randomized prospective study comparing early versus delayed cystectomy in patients with pT1 bladder cancer is currently conducted to validate our findings.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Denzinger S,Stoehr R,Schwarz S,Eichenseher N,Brockhoff G,Obermann EC,Knuechel R,Blaszyk H,Hartmann A,Wild PJsubject
Has Abstractpub_date
2007-10-01 00:00:00pages
793-802issue
4eissn
1019-6439issn
1791-2423journal_volume
31pub_type
杂志文章abstract::Tumor cell (TC) metastasis is initiated by selective adhesion of TCs to target structures such as basement membrane and endotheliaI cells (ECs), followed by transvascular migration of TCs. Variants of murine B16 melanoma having different metastatic potentials (in the order BL6 greater than or equal to F10>F1>WA4) have...
journal_title:International journal of oncology
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doi:10.3892/ijo.6.2.319
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doi:10.3892/ijo.20.3.631
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journal_title:International journal of oncology
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abstract::The molecular basis of host-tumor interaction in HLA-A31+ cancer patients has not been well understood. This lack of clarification is hampering the development of specific immunotherapies for these patients. This study aimed to identify a set of CTL-epitope peptides applicable for the specific immunotherapy of cancer ...
journal_title:International journal of oncology
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journal_title:International journal of oncology
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abstract::Pancreatic cancer is one of the most aggressive solid malignancies with a dismal survival rate. Recent studies have shown that high expression levels of histone deacetylase 3 (HDAC3) correlate with malignant phenotype. However, the expression patterns and biological role of HDAC3 in pancreatic cancer remain unclear. I...
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更新日期:1998-08-01 00:00:00
abstract::Sterile alpha motif and histidine/aspartic acid domain‑containing protein 1 (SAMHD1), the only deoxynucleotide triphosphate (dNTP) hydrolase in eukaryotes, plays a crucial role in regulating the dynamic balance and ratio of cellular dNTP pools. Furthermore, SAMHD1 has been reported to be involved in the pathological p...
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doi:10.3892/ijo.2020.4988
更新日期:2020-04-01 00:00:00
abstract::Recent investigations have demonstrated that polyphenolic catechins inhibit cancer cell proliferation and tumor growth. However, how the major active component of tea catechins, epigallocatechin-3 gallate (EGCG), mediates anticancerous effects has not been extensively examined. We have investigated the cell growth inh...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2007-10-01 00:00:00
abstract::The peptide hormone, GnRH has been hypothesized to play a direct antitumoral role in certain kinds of breast cancer. This direct effect is considered to function via high affinity membrane receptors to GnRH that have been demonstrated in tumors. However, no routine assay for GnRH receptors exist limiting further resea...
journal_title:International journal of oncology
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更新日期:1995-08-01 00:00:00
abstract::Renal cell carcinoma (RCC) is the most common solid neoplasm of adult kidney, and the major treatment for metastatic RCC (mRCC) is molecular targeted therapy. Sorafenib, as a multi-targeted tyrosine kinase inhibitor (TKI), has significantly improved clinical outcomes of mRCC patients. However, complete or long-term re...
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更新日期:2016-04-01 00:00:00
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更新日期:2015-09-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.1773
更新日期:2013-03-01 00:00:00
abstract::Loss of E-cadherin and catenin expression may be associated with distant and lymph node metastases in breast cancer. Heterogeneity of E-cadherin expression is associated with poor prognosis, suggesting that E-cadherin and catenins may serve as useful prognostic markers for invasive breast carcinoma. Reduction or loss ...
journal_title:International journal of oncology
pub_type: 杂志文章
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更新日期:2001-03-01 00:00:00
abstract::Rituximab resistance has become increasingly common in patients with diffuse large B cell lymphoma (DLBCL). However, the mechanisms involved remain unclear. In this study, we aimed to examine the effect of rituximab on interleukin (IL)-17A and to investigate the role of IL-17A in rituximab resistance and its prognosti...
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journal_title:International journal of oncology
pub_type: 临床试验,杂志文章
doi:
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abstract::A number of glycosyltransferases have been identified and biologically characterized in cancer cells, yet their exact pathophysiological functions are largely unknown. Here, we report the critical role of β1,3-N-acetylgalactosaminyltransferase II (B3GALNT2), which transfers N-acetylgalactosamine (GalNAc) in a β1,3 lin...
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journal_title:International journal of oncology
pub_type: 杂志文章,评审
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abstract::Adrenomedullin (AM) is a multifunctional 52-amino acid peptide. AM has several effects and acts as a growth factor in several types of cancer cells. Our previous study revealed that an AM antagonist (AMA) suppressed the growth of pancreatic tumors in mice, although its mechanism was not elucidated. In this study, we c...
journal_title:International journal of oncology
pub_type: 杂志文章
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更新日期:2010-06-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章,已发布勘误
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更新日期:2019-05-01 00:00:00
abstract::Patients with esophageal carcinoma (ESCA) have a poor prognosis and high mortality rate. Although standard therapies have had effect, there is an urgent requirement to develop novel options, as increasing drug tolerance has been identified in clinical practice. In the present study, differentially expressed genes (DEG...
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更新日期:2010-08-01 00:00:00
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更新日期:2011-05-01 00:00:00