Abstract:
:Previous studies have revealed that protein kinase C (PKC) is responsible for malignant progression. In the present study, we investigated the potent inhibitory effects of an antiestrogen, toremifene, on PKC-mediated cellular adhesion. A phorbol ester, phorbol 12-myristate 13-acetate (PMA), significantly enhanced alpha2beta1 integrin-dependent adhesion of MCF-7 breast carcinoma cells. This PMA-induced adhesion was partially inhibited by incubating cells with toremifene prior to PMA exposure in a time- and dose-dependent manner. FACS analysis demonstrated that the PMA-induced alpha2beta1-dependent cellular adhesion was accompanied with elevated expression of alpha2beta1+integrin subunit on the cell surface. However, toremifene did not affect the elevated expression levels of these integrins but rather the avidity of alpha2beta1 integrin. We concluded that toremifene inhibited cellular adhesion activated by PMA, probably through mechanism which inhibits PKC.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Maemura M,Iino Y,Horiguchi J,Takei H,Horii Y,Koibuchi Y,Yokoe T,Takeyoshi I,Ohwada S,Morishita Ydoi
10.3892/ijo.13.5.981subject
Has Abstractpub_date
1998-11-01 00:00:00pages
981-5issue
5eissn
1019-6439issn
1791-2423journal_volume
13pub_type
杂志文章abstract::Thermal ablation of solid tumors using conductive interstitial thermal therapy (CITT) produces coagulative necrosis in the center of ablation. Local changes in homeostasis for surviving tumor and systemic changes in circulation and distant organs must be understood and monitored in order to prevent tumor re-growth and...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.2185
更新日期:2014-02-01 00:00:00
abstract::We previously reported that podophyllotoxin acetate (PA) radiosensitizes NCI-H460 cells. Here, we confirmed that PA treatment also induces cell death among two other non-small cell lung cancer (NSCLC) cell lines: NCI-H1299 and A549 cells (IC50 values = 7.6 and 16.1 nM, respectively). Our experiments further showed tha...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.3123
更新日期:2015-10-01 00:00:00
abstract::Colorectal cancer (CRC) is one of the most common cancers; however, the development of drugs to treat the condition has reached a plateau. Bortezomib (PS-341, Velcade®) is a proteasome inhibitor approved for the treatment of hematological malignancies, including multiple myeloma. A few trials of bortezomib, alone or i...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1448
更新日期:2012-07-01 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
pub_type: 杂志文章
doi:
更新日期:1995-08-01 00:00:00
abstract::5-Fluorouracil (5-FU), a fluoropyrimidine analogue, is one of the most commonly used anticancer drugs for the treatment of gastrointestinal malignancies. Some studies reported that the cytotoxicity of fluoropyrimidines is mediated, in large part, by inhibition of the thymidylate synthase (TS), an essential DNA synthet...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
abstract::Sialic acid-containing glycosphingolipids, gangliosides, are expressed at high levels in the nerve tissues and various tumor cells. Although a number of studies on the roles of gangliosides in the regulation of cell proliferation have been performed, the mechanisms for the regulation are not well understood. We establ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2005-01-01 00:00:00
abstract::Voltage-gated potassium (Kv) channels play important roles in differentiation and growth of non-excitable cells. Inhibition of these channels is also known to suppress proliferation of various cancer cells. Here we examine expression of K+ channel subunit genes in various uterine cancer cells and their roles in cell p...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2004-07-01 00:00:00
abstract::TP53 gene, encoding tumor protein P53, is frequently inactivated in various types of human cancer, including colorectal, lung, and gastric cancer. Cancer cells with TP53 mutation acquire malignant potentials, such as selective growth advantage, genomic instability, resistance to apoptosis, and promotion of angiogenesi...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2004-07-01 00:00:00
abstract::Clinical trials using antiangiogenic drugs revealed their potential against cancer. Unfortunately, a large percentage of patients does not yet benefit from this therapeutic approach highlighting the need of diagnostic tools to non-invasively evaluate and monitor response to therapy. It would also allow to predict whic...
journal_title:International journal of oncology
pub_type: 杂志文章,评审
doi:10.3892/ijo.2016.3553
更新日期:2016-08-01 00:00:00
abstract::Photodynamic therapy (PDT) following lung-sparing extended pleurectomy for malignant pleural mesothelioma (MPM) has been investigated as a potential means to kill residual microscopic cells. High expression levels of folate receptor 1 (FOLR1) have been reported in MPM; therefore, targeting FOLR1 has been considered a ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4555
更新日期:2018-11-01 00:00:00
abstract::Lamins are the major components of the nuclear lamina and play important roles in many cellular processes. The role of lamins in cancer development and progression is still unclear but it is known that reduced expression of lamin B1 has been observed in colon cancer. Thus, the aim of the present study was to elucidate...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2017.4182
更新日期:2018-01-01 00:00:00
abstract::Expression and functions of interleukin (IL)-8, a pro-inflammatory cytokine with angiogenesis action, was examined in 23 surgically resected hepatocellular carcinoma (HCC) specimens and 7 HCC cell lines. In all HCC tissues, IL-8 expression was confirmed with reverse-transcription polymerase chain reaction method and e...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.18.2.257
更新日期:2001-02-01 00:00:00
abstract::Orlistat is an orally administered anti-obesity drug that has shown significant antitumor activity in a variety of tumor cells. To identify the proteins involved in its antitumor activity, we employed a proteomic approach to reveal protein expression changes in the human ovarian can...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1465
更新日期:2012-08-01 00:00:00
abstract::The ADAMs (A disintegrin and metalloproteinase) are a family of cell-surface membrane glycoproteins, whose multidomain structure enables diverse roles in a wide range of cellular processes. Accumulating evidence associates an increased expression of individual ADAM family members with various types of cancer, and we i...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2005-01-01 00:00:00
abstract::MicroRNAs can govern up to hundred different mRNAs and are important regulators of gene expression programs in development and disease. We analyzed the expression of microRNA-21, one of the most common oncomirs, in non-small cell lung cancer (NSCLC). Using northern blots the microRNA-21 expression levels of NSCLC-deri...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2272
更新日期:2014-04-01 00:00:00
abstract::Raf-1 protein kinase plays an important role in cell growth, proliferation and cell survival. We have previously described the use of liposome-entrapped antisense raf oligonucleotide (LErafAON) to inhibit Raf-1 expression resulting in tumor growth inhibition and radiosensitization. The present study was undertaken to ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2004-05-01 00:00:00
abstract::RhKGF is developed for prevention and treatment of chemotherapy- and radiation-induced epithelial damage in cancer patients. Little information exists on growth modulation of malignant cells by KGF. We have tested the anchorage-independent clonal growth of 35 human tumor and 22 lymphoma and leukemia cell lines in semi...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2004-10-01 00:00:00
abstract::In solid tumours, necrosis is commonly found in the core region in response to metabolic stress that results from oxygen and glucose depletion (OGD) due to insufficient vascularization and has been implicated in tumour progression. We have previously shown that metabolic stress due to glucose depletion (GD) induces ne...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2010-01-01 00:00:00
abstract::Three major, fast developing lines of research are elucidating the biology of the mammary gland and its malignant transformation: phenotypical analyses of epithelial cells and mammary proliferative lesions, the identification, purification and characterization of mammary stem cells and breast cancer-initiating cells, ...
journal_title:International journal of oncology
pub_type: 杂志文章,评审
doi:
更新日期:2004-08-01 00:00:00
abstract::Selenium is considered to be one of the most promising micronutrients for cancer prevention and therapy, based on evidence from epidemiological studies, laboratory-based research and clinical trial intervention. There are ample reports of selenium methionine and sodium selenite's ability to induce apoptosis in various...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2007-05-01 00:00:00
abstract::Early gastric cancers (EGC) may be subdivided into 2 groups by means of the use of mitotic index, apoptotic index and cell density: EGCs with high cell turnover and low cell density, which show high cell dissociation and, more frequently, lymph node invasion; EGCs with low cell turnover and high cell density. The same...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.12.4.883
更新日期:1998-04-01 00:00:00
abstract::Gallbladder cancer (GBC) is one of the most unfavorable prognostic tumor, and immediate growth and distant metastasis are important factors associated with the poor prognosis of patients with this disease. Standard and variant isoforms of CD44 are associated with tumor growth, metastasis, and epithelial-mesenchymal tr...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2017.4063
更新日期:2017-09-01 00:00:00
abstract::We investigated the clinical significance of the expression levels of matrix metalloproteinase 9 (MMP-9) in renal cell carcinoma (RCC). In addition, we validated the efficacy of pyrrole imidazole polyamide (PIP) targeting MMP-9 on inhibiting proliferation and invasion of RCC. We evaluated the expression levels of MMP-...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.2073
更新日期:2013-11-01 00:00:00
abstract::Polo-like kinase 1 (PLK1), a serine/threonine kinase and an oncogene, is crucial in regulating cell cycle progression. PLK1 also has been demonstrated as a potential target of osteosarcoma (OS) by using short hairpin RNA libraries in lentiviral vectors for screening of protein kinase. In preclinical studies, GSK461364...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2016.3352
更新日期:2016-03-01 00:00:00
abstract::Breast cancer (BrC) is a major public health problem worldwide. The intra-tumoral heterogeneity and tumor cell plasticity importantly contribute to disease progression and treatment failure. However, the dynamic interactions between different tumor clones, as well as their contribution to tumor aggressiveness are stil...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2017.4128
更新日期:2017-11-01 00:00:00
abstract::Targeting protein kinases as a therapeutic approach to treat various diseases, especially cancer is currently a fast growing business. Although many inhibitors are available, exhibiting remarkable potency, the major challenge is their selectivity. Here we show that the protein kinase CK2 inhibitors DMAT, TBB and resor...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo_00000431
更新日期:2009-11-01 00:00:00
abstract::Malignant pleural mesothelioma (MPM) is an aggressive cancer for which more effective treatments are needed. In this study, strong to moderate staining of MET and ERK5 was detected in 67.1 and 48% of the analyzed 73 human mesothelioma tumors, and significant correlation of MET and ERK5 expression was identified (P<0.0...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2017.4021
更新日期:2017-07-01 00:00:00
abstract::Abnormal activation of signal transducer and activator of transcription 3 (STAT3) serves a pivotal role in oral squamous cell carcinoma (OSCC) tumor cell invasion into normal tissues or distant organs. However the downstream regulatory network of STAT3 signaling remains unclear. The present study aimed to investigate ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4293
更新日期:2018-04-01 00:00:00
abstract::Glutathione S-transferase (GST) enzymes catalyse the detoxification of by-products of reactive oxygen species and are thus important in cellular defence mechanisms. The GSTs are polymorphic with allelic variants encoding isoforms with functional differences. GST polymorphism has been associated with susceptibility and...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2006-01-01 00:00:00
abstract::Erlotinib, an epidermal growth factor receptor tyrosine kinase inhibitor (EGFR‑TKI), is widely applied as a first‑line treatment for non‑small cell lung cancer (NSCLC) and greatly improves the clinical outcomes of patients. However, acquired resistance to EGFR‑TKIs remains a major clinical challenge. Here, we identifi...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2020.5086
更新日期:2020-09-01 00:00:00