Abstract:
:Degradation of the extracellular matrix is a prerequisite for the invasive phenotype in glioma cells. Several proteases released by invading tumor cells seem to participate in the focal degradation of extracellular matrix proteins. Using enzymatic assays, Western blotting, and Northern blotting techniques, we investigated whether cathepsin B level was associated with malignant grade in seven human glioma cell lines. Cathepsin B activity and protein content levels were higher in glioblastoma cell lines than in anaplastic astrocytoma or low-grade glioma cell lines. Cathepsin B transcripts were overexpressed in glioblastoma cell lines relative to their expression in anaplastic astrocytoma and low-grade glioma cell lines. Cathepsin B promoter activity and amount of SP-1 complexes were much higher in glioblastoma cell lines than in anaplastic astrocytoma or low-grade glioma cell lines. Finally, E-64, an inhibitor of cathepsin B, inhibited both cathepsin B enzymatic activity and the invasiveness of glioblastoma cell lines. These results strongly support a role for cathepsin B in glioblastoma cell lines and suggest that inhibition of cathepsin B activity may be proven useful in cancer therapy.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Konduri S,Lakka SS,Tasiou A,Yanamandra N,Gondi CS,Dinh DH,Olivero WC,Gujrati M,Rao JSdoi
10.3892/ijo.19.3.519keywords:
subject
Has Abstractpub_date
2001-09-01 00:00:00pages
519-24issue
3eissn
1019-6439issn
1791-2423journal_volume
19pub_type
杂志文章abstract::Resistance to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a major limitation for its clinical use. The mechanisms of TRAIL resistance have been mostly studied in the context of cell lines that are intrinsically resistant to TRAIL. However, little is known about the molecular alterations that con...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1748
更新日期:2013-02-01 00:00:00
abstract::SK-N-SH human neuroblastoma cell line was employed to test whether direct introduction of the RII beta subunit of PKA could induce growth inhibition and reverse-transformation of cancer cells. We infected SK-N-SH cells with an RII beta expression construct and the clonal line with the highest expression level was sele...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.8.4.663
更新日期:1996-04-01 00:00:00
abstract::We have previously isolated a drug-resistant, [PC3(R)], variant of human prostate PC3 cell line, which showed significant resistance (>10-fold) to adriamycin. No known mechanisms of drug resistance were found; however, resistant cells expressed more bcl2, c-myc, and ms oncogenes compared to the sensitive cells. In thi...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.11.4.819
更新日期:1997-10-01 00:00:00
abstract::Human Frizzled-7 (FZD7) and human FzE3, showing 98.8% nucleotide identity, encode almost identical WNT receptors with nine amino-acid substitutions. FzE3 is claimed to be expressed specifically in esophageal cancer. We determined the structure of the FZD7 gene and the FZD7 cDNA expressed in esophageal cancer. The FZD7...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2001-07-01 00:00:00
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
pub_type: 杂志文章
doi:
更新日期:2004-02-01 00:00:00
abstract::This study examined whether the soluble tumor-associated-antigens (TAA), of 66 kDa and 51 kDa, could promote suppression by anticancer drugs of chemically-induced mammary tumorigenesis. Dimethylbenzanthracene (DMBA, 10 mg/rat, twice) was used to induce mammary tumors. Then, for nine more weeks, the preparation of TAA ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.19.2.407
更新日期:2001-08-01 00:00:00
abstract::We hypothesize that dysregulated expression levels of the developmental regulatory genes in the adult body result in tumor development and malignant progression. PAX genes discovered as human orthologous genes of Drosophila 'paired' encode transcription factors, which control the expression of target genes to go on al...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2008-11-01 00:00:00
abstract::Following the publication of the above paper, an interested reader drew to the authors' attention that, in Fig. 2D, the si‑ITGB3/E‑cadherin image appeared to show an overlap with the Scr/MDA231+CCL18/N‑cadherin image from Fig. 4E in a paper published in 2013 that shared some of the same authors [Zhang B, Yin C, Li H, ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2021.5169
更新日期:2021-01-11 00:00:00
abstract::Thirty-four children with newly diagnosed acute nonlymphoblastic leukemia were analysed for the expression of P-glycoprotein (P-170), glutathione S-transferase-pi, (GST-pi) topoisomerase II (Topo II) and the proliferation antigen Ki-67 by the streptavidin-biotin-peroxidase method. Overexpression of P-170 was present i...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.5.4.841
更新日期:1994-10-01 00:00:00
abstract::Cholecystokinin (CCK) and gastrin stimulate growth of pancreatic cancer. Although down-regulation of gastrin inhibits growth of pancreatic cancer, the contribution of endogenous CCK to tumor growth is unknown. The purpose of this study was to evaluate the role of endogenous CCK on autocrine growth of pancreatic cancer...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2010.886
更新日期:2011-03-01 00:00:00
abstract::WNT signaling pathway is implicated in carcinogenesis and embryogenesis. We have previously cloned and characterized WNT10A, and demonstrated up-regulation of WNT10A in gastric cancer. Here, we investigated expression of WNT10A mRNA in various types of human cancer. WNT10A mRNA was detected in 10 out of 12 esophageal ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.19.5.997
更新日期:2001-11-01 00:00:00
abstract::Due to the central role in predicting response to herceptin and possibly also other anticancer drugs, accurate and reproducible detection of the HER2 status is important. Fluorescence in situ hybridization (FISH) and immunohistochemistry (IHC) are the most commonly used methods for HER2 analysis. It is a disadvantage ...
journal_title:International journal of oncology
pub_type: 临床试验,杂志文章
doi:
更新日期:2004-12-01 00:00:00
abstract::The effects of different substrate stiffness were investigated on epithelial-mesenchymal transition (EMT) of cervical cancer cell lines and the role of miR-106b and its target protein DAB2 therein. Cervical cancer cell lines HeLa and SiHa were cultured on artificial substrates with different stiffness prepared using d...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2017.3978
更新日期:2017-06-01 00:00:00
abstract::Fucoidan, a sulfated polysaccharide, has significant cytotoxic activity against tumor cells; however, the mechanism(s) of this action remains poorly understood. The present study was designed to determine the in vitro and in vivo effects of fucoidan and their molecular mechanisms. F...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.1168
更新日期:2012-01-01 00:00:00
abstract::Bone morphogenetic protein 7 (BMP-7) is an important regulator of cell development and differentiation of various organs. Tumorigenesis and tumor progression are also strongly associated with changes of the fate of cells which are highly differentiated in healthy tissues. Therefore, we studied the role of BMP-7 in bre...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2003-07-01 00:00:00
abstract::Collagen type I is an abundant component of the extracellular matrix and due to its longevity, constitutes a prominent target of non-enzymatic post-translational in vivo modifications such as carbamylation and glycation. These protein modifications involved in aging, renal diseases and diabetes, are linked to elevated...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1393
更新日期:2012-06-01 00:00:00
abstract::The assembly of trans-acting proteins on sequence-specific DNA cis-elements is crucial in the regulation of eukaryotic gene expression. Far upstream element binding proteins (FAB) are proteins that regulate the expression of the c-myc oncogene by binding to the far upstream element of the c-myc gene. The present study...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2006-09-01 00:00:00
abstract::The tyrosine kinase inhibitor imatinib has been reported to inhibit CD8+ T lymphocytes. Little is known about its effects on CD4+CD25+ regulatory T cells (T(reg) cells) which might regulate the graft-vs.-leukemia (GVL) reaction after allogeneic stem cell transplantation (allo-SCT) and donor lymphocyte infusion (DLI). ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2007-11-01 00:00:00
abstract::The expression of mucinous ovarian cancer (OVC) antigen by hybrid cell lines derived by fusing a malignantly transformed Bloom syndrome (BS) cell line (BS-SHI-4M OVC-MU) and mouse L cells has been studied. Cell surfaces of 16 hybrids which grew 12-40 days post-fusion have been analysed by using a number of sera from m...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.7.6.1275
更新日期:1995-12-01 00:00:00
abstract::Sentinel node (SN) mapping and biopsy is a procedure that accurately stages the regional lymph node (LN) basin. Defined patterns of lymphatic drainage allow intraoperative determination of the first (sentinel) lymph node in the regional basin, and the absence of metastatic disease in the SN accurately reflects the abs...
journal_title:International journal of oncology
pub_type: 杂志文章,评审
doi:10.3892/ijo.15.1.25
更新日期:1999-07-01 00:00:00
abstract::Salinomycin (SAL) is a polyether ionophore antibiotic that has recently been shown to regulate a variety of cellular responses in various human cancer cells. However, the effects of SAL on metastatic capacity of HT1080 human fibrosarcoma cells have not been elucidated. We investigated the effect of SAL on migration an...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2016.3448
更新日期:2016-06-01 00:00:00
abstract::Seven ovarian and one cervical human cancer cell lines were examined far their sensitivity or resistance to tumor necrosis factor, to three topoisomerase II inhibitors and to cisplatin. Only one line exhibited the multidrug-resistance phenotype and another one an 'atypical'-MDR phenotype. The combination of TNF and to...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:1995-09-01 00:00:00
abstract::The MUC1 heterodimeric protein is aberrantly overexpressed in diverse human carcinomas and contributes to the malignant phenotype. The MUC1-C transmembrane subunit contains a CQC motif in the cytoplasmic domain that has been implicated in the formation of dimers and in its oncogenic function. The present study demonst...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.1308
更新日期:2012-05-01 00:00:00
abstract::Growth factors may play a role in autocrine or paracrine growth control of tumour cells. We have now examined the expression pattern in vivo by in situ hybridization (ISH) on a series of 13 ductal adenocarcinomas of the pancreas using the non-radioactive digoxigenin system to generate specific antisense orientated rib...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.4.6.1219
更新日期:1994-06-01 00:00:00
abstract::Both chemical and physical carcinogens are potent inducers of asynchronous replication of various DNA tumor viruses. Employing H3 cells that carry an integrated copy of polyoma virus we have evaluated potential effects of known chemopreventive agents on carcinogen-induced polyoma DNA replication. The ability of well e...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2.3.413
更新日期:1993-03-01 00:00:00
abstract::In this communication we show that overexpression of the human TATA-binding protein (TBP) activates a synthetic promoter with p53-binding sites in the presence of wild-type p53. No activation is observed in the absence of wild-type p53 in Saos-2 cells. Perhaps, TBP is limiting in these cells for the p53-mediated activ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::Subsequently to the publication of the above paper, the authors have realized that Figs. 3 and 4 contained errors. Two sets of bands in Figs. 3D and 4B were erroneously placed during the process of figure preparation. In Fig. 3D, the β‑actin bands for the PANC‑1 and CFPAC‑1 cells were presented incorrectly, whereas in...
journal_title:International journal of oncology
pub_type: 杂志文章,已发布勘误
doi:10.3892/ijo.2019.4871
更新日期:2019-11-01 00:00:00
abstract::Matrix metalloproteinases (MMP) play an important role in tumor cell invasion and metastasis. We examined the expression of MMPs in hepatocellular carcinoma (HCC) to determine whether they may help indicate the progression of HCC and patient outcome. The expression of MMP-1, -2, -7, -9, and MT1-MMP were determined in ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.17.2.237
更新日期:2000-08-01 00:00:00
abstract::Peyronie's disease (PD) is fibrosis localized in the tunica albuginea that is characterized by penile deformity and curvature. The pathogenesis of this disease remains unclear even though transforming growth factor-β (TGF-β)/smad signalling has been reported to be associated with PD. Recent studies have shown that pho...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.1905
更新日期:2013-06-01 00:00:00
abstract::Overexpression of inducible nitric oxide synthase (iNOS) and the resultant overproduction of NO has been implicated in neuronal inflammatory diseases. Leptomycin B (LMB), a metabolite of Streptomyces, has been identified as a specific inhibitor of CRM1 nuclear export receptor. In this study, we evaluated the effect of...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2006-12-01 00:00:00