Abstract:
:The present in vitro study on three human renal cell carcinoma (RCC) cell lines (A-498, ACHN, SN12C) evaluated the efficacy of 2',2'-difluorodeoxycytidine (dFdC, gemcitabine), vinblastine (VBL), rhu-interferon-alpha (IFN-alpha) and rhu-interferon-gamma (IFN-gamma) alone or in combinations. The cytotoxicity was measured by using the sulphorhodamine B colorimetric cytotoxicity assay. Analyses were made from cells being continuously long-term (4 weeks) or short-term (4 h) with IFN-alpha or IFN-gamma with regard to the cytotoxicity of the chemotherapeutic agents. dFdC was more cytotoxic against ACHN and A-498 cells compared to VBL. Pre-treatment with IFN-alpha enhanced growth inhibition caused by dFdC (4/4 cell lines) and VBL (2/3 cell lines), and was more effective than IFN-gamma. Pre-exposure with IFN-alpha sensitized SN12C and ACHN cells for dFdC. A-498 cells achieved a decreased sensitivity to dFdC and VBL after pre-exposure to IFN-gamma. The resistance of newly established dFdC-resistant SN12C cells (23-times) decreased when pre-treated with IFN-alpha. The data demonstrate efficacy of dFdC in human RCC at concentrations below clinically achievable doses. dFdC was more effective compared to VBL. Combined therapy preferentially with IFN-alpha increased cytotoxicity of dFdC in vitro. In vivo studies in nude mice xenografts are under investigation to support these observations.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Rohde D,Hayn HK,Blatter J,Jakse Gdoi
10.3892/ijo.12.6.1361subject
Has Abstractpub_date
1998-06-01 00:00:00pages
1361-6issue
6eissn
1019-6439issn
1791-2423journal_volume
12pub_type
杂志文章abstract::Telomerase (T) is a ribonucleoprotein complex that includes the telomerase RNA component (hTR), telomerase associated protein (TP1) and the telomerase catalytic subunit (hTERT). Telomerase has been shown in stem cells and found to be activated in tumor tissues and immortalized cells. We wanted to test whether the expr...
journal_title:International journal of oncology
pub_type: 杂志文章,评审
doi:
更新日期:2002-08-01 00:00:00
abstract::Nucleophosmin (NPM, also known as B23), mainly localized in the nucleolus, has been reported to be overexpressed in many types of human cancer, including colon, ovarian, prostate and gastric cancer. NPM was identified while screening the differential nuclear matrix proteins during HMBA-induced differentiation of human...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2407
更新日期:2014-07-01 00:00:00
abstract::Hypoxia, a common phenomenon during the development of malignant solid tumors including breast cancer, serves to propagate a cascade of molecular pathways triggered by hypoxia-inducible factor-1α (HIF-1α). Carbonic anhydrase IX (CA IX), one of the target genes of HIF-1α, has been reported to be involved in progression...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.3253
更新日期:2016-01-01 00:00:00
abstract::Investigators have shown that green tea may decrease the risk of cancer. It is widely accepted that the main active component of green tea is EGCG (epigallocatechin-3-gallate). In our previous study, we examined the effect of green tea on breast cancer growth and endothelial cells both in in vitro assays and in animal...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2002-09-01 00:00:00
abstract::In the present study, we analyzed the proliferation and cytotoxic activities of LAK cells and initial phase TILs by stimulation with IL-4. IL-4 obviously inhibited the DNA synthesis of LAK cells and initial phase TILs at the concentration of 250 pg/ml and 25 pg/ml, respectively. Furthermore, IL-4 (25 ng/ml for LAK cel...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.7.5.1117
更新日期:1995-11-01 00:00:00
abstract::The aim of the present study was to assess whether (-)-epigallocatechin 3-gallate (EGCG) via epigenetic modifications, regulates Raf kinase inhibitor protein (RKIP) expression and invasive metastatic activity in AsPC-1 pancreatic adenocarcinoma cells. Basal levels of RKIP were examined in various human pancreatic canc...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1686
更新日期:2013-01-01 00:00:00
abstract::The transcription factor twist family bHLH transcription factor 1 (TWIST), which is a member of the basic helix-loop-helix class of proteins, is known to induce epithelial-mesenchymal transition (EMT) and promote cancer metastasis. TWIST has previously been reported to be associated with multidrug resistance (MDR), si...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4495
更新日期:2018-10-01 00:00:00
abstract::WNT signaling pathway plays a key role in carcinogenesis and embryogenesis. We have cloned and characterized the human WNT5B. Overlapping WNT5B cDNAs, containing 1080-bp ORF, were isolated. WNT5B encoded a 359-amino-acid polypeptide with the N-terminal signal peptide, four N-linked glycosylation sites, and consensus a...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.19.2.347
更新日期:2001-08-01 00:00:00
abstract::Smac/DIABLO promotes apoptosis by antagonizing inhibitor of apoptosis proteins. The expression of Smac/DIABLO in tissues has been reported in various cancers; however, little is known about circulating levels of Smac/DIABLO. The present study was designed to first determine if Smac/...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1324
更新日期:2012-04-01 00:00:00
abstract::Hepatocyte growth factor (HGF) is a key growth factor linked to promoting cancer progression and angiogenesis. The present study identifies repulsive guidance molecule b (RGMb), a bone morphogenetic protein (BMP) co-receptor, as a gene whose expression is regulated by HGF and explores the potential of RGMb to contribu...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2508
更新日期:2014-09-01 00:00:00
abstract::Upregulation of nuclear factor-κB (NF-κB) in colorectal carcinoma (CRC) accelerates tumor growth, whereas, irinotecan (CPT-11)-induced NF-κB activation reduces chemosensitivity and weakens the anti-colorectal cancer function itself, while proteasome inhibitors can inhibit NF-κB and improve the effect of chemotherapy. ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2513
更新日期:2014-09-01 00:00:00
abstract::Functional defects in DNA mismatch repair genes have been shown to be associated mainly with hereditary human malignancies. We examined genomic DNA from 88 sporadic transitional cell carcinomas (TCCs) of the urinary tract for mutations in hMSH6 gene by polymerase chain reaction and direct sequencing analysis. Mutation...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2000-03-01 00:00:00
abstract::Lymph node metastasis of tumors is a crucial early step in the metastatic process. Tumor lymphangiogenesis plays an important role in promoting tumor metastasis to regional lymph nodes. Norcantharidin (NCTD) has been reported to possess potent anti-angiogenesis and antitumor propert...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1603
更新日期:2012-11-01 00:00:00
abstract::Primary cilia are microtubule-based organelles that regulate smoothened-dependent activation of the GLI transcription factors in canonical hedgehog signaling. In many cancers, primary cilia are markedly decreased or absent. The lack of primary cilia may inhibit or alter canonical hedgehog signaling and, thereby, inter...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.3006
更新日期:2015-07-01 00:00:00
abstract::Human papillomavirus 16 (HPV-16) is strongly associated with the development of 50% of cervical cancers. The E6 and E7 proteins encoded by high-risk HPV types are associated with the immune evasion of cervical cancer cells, but the mechanism is poorly understood. The purpose of this study was to investigate whether ce...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.1108
更新日期:2011-11-01 00:00:00
abstract::Activation of intestinal human pregnane X receptor (PXR) has recently been proposed as a promising strategy for the chemoprevention of inflammation-induced colon cancer. The present study was aimed at evaluating the effect of rifaximin, a non-absorbable antibiotic, in inhibiting angiogenesis in a model of human colore...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2016.3550
更新日期:2016-08-01 00:00:00
abstract::Pro‑inflammatory (M1) macrophages have key roles in atherogenesis. As β‑glucan has been demonstrated to exert pro‑inflammatory effects, the present study examined whether β‑glucan exerts atherogenic effects via converting macrophages into M1 phenotype. The results from reverse transcription‑quantitative polymerase cha...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4630
更新日期:2019-01-01 00:00:00
abstract::Shc protein is known to be related to cell proliferation and carcinogenesis. However, the involvement of Shc in hepatocellular carcinoma (HCC) remains unknown. In the present study, we report that p46 Shc is probably expressed in the nuclei of hepatocytes and/or cancer cells during the development of HCC in Long-Evans...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2004-10-01 00:00:00
abstract::Oxidative stress due to intratumoral hypoxia in solid cancer has been shown to be associated with increased mortality. Phosphoglycerate kinase 1 (PGK1) is an enzyme of the glycolytic pathway, which is regulated by hypoxia-inducible factor-1α (HIF-1α) and has been described for its role in tumor progression and metasta...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.1971
更新日期:2013-08-01 00:00:00
abstract::Cytogenetic analyses of peripheral blood cells of breast cancer patients unveiled in one case a grossly enlarged G-band in one copy of chromosome 16 (16qh+), which scored also strongly positive in C-banding. Fluorescence in situ hybridization with both a total chromosome 16 library and with probe pHuR195 detecting loc...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.4.2.347
更新日期:1994-02-01 00:00:00
abstract::We have previously investigated the possibility of using hypericin as a diagnostic tool for the fluorescence detection of flat bladder carcinoma. In these clinical studies, it was shown that following intravesical application in humans, hypericin becomes selectively localized in transitional papillary carcinoma and ca...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2003-04-01 00:00:00
abstract::A camptothecin (CPT) formulation that can be easily administered, is less toxic, and has greater antitumor effect is needed. In this study, a water-soluble CPT derivative was obtained by direct coupling of CPT to poly(L-glutamic acid) (PG) through the C20(S)-hydroxyl group. CPT was released from the resulting conjugat...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.18.2.331
更新日期:2001-02-01 00:00:00
abstract::This study defines the role of WWOX in the regulation of epithelial to mesenchymal transition. A group of 164 endometrial adenocarcinoma patients was studied as well as an ECC1 well-differentiated steroid-responsive endometrial cell line, which was transducted with WWOX cDNA by a retroviral system. The relationship be...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.2964
更新日期:2015-01-01 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::Chlorophyllin (CHL) is the sodium-copper salts of chlorophyll derivatives. In this study, the CHL was derived from a traditional Chinese medicine, the Bombyx mori excreta. The CHL, at concentrations 25-400 microg/ml, reduced the proliferation of HL-60, K-562, S-180, and MCF-7 cells by 8.2-95.7% after 72 h of incubatio...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2003-09-01 00:00:00
abstract::Renal cell carcinoma (RCC) is resistant to chemo-therapy partly due to the overexpression of the P-glycoprotein. Several tumor suppressor genes have been reported to be silenced by hypermethylation of the promoter region in RCC. We recently reported that the in vitro cytotoxicity of vinblastine (VBL) was enhanced by p...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.999
更新日期:2011-06-01 00:00:00
abstract::Emerging evidence indicates that mesenchymal stem cells (MSCs) serve an indispensable role in the tumor microenvironment. However, whether MSCs participate in the development of oral carcinogenesis remains unclear. The present study isolated MSCs from clinical tissues and investigated the differences of MSCs derived f...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2019.4756
更新日期:2019-05-01 00:00:00
abstract::Malignant gliomas are diffuse infiltrative growing tumors with a poor prognosis despite treatment with a combination of surgery, radiotherapy and chemotherapy. It has been shown recently that complete tumor resection improves the survival time significantly. Hypericin, a component of St. Johns Wort, is one of the most...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.968
更新日期:2011-05-01 00:00:00
abstract::Dideoxypetrosynol A, a polyacetylene from the marine sponge Petrosia sp., is known to exhibit significant selective cytotoxic activity against several human cancer cell lines. In the present study, we investigated further possible mechanisms by which dideoxypetrosynol A exerts its anti-proliferative action in cultured...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract::MUC16 (CA125) is a transmembrane mucin that contributes to the progression of epithelial ovarian cancer (EOC). Expression of MUC16 is not detectable in the epithelial surface of normal ovaries. MUC16 expression is, however, common in serous EOC as well as in metastatic and recurrent tumors. Despite these observations,...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2707
更新日期:2015-01-01 00:00:00