Abstract:
BACKGROUND:The antitumor effect exerted by tumor necrosis factor (TNF) is characteristic in that it causes central necrosis of the tumor mass. Viable tumor cells surrounding the tumor mass remain, however, even after most of the mass is necrotized, and these cells gradually regrow and form tumors. To overcome this, we analyzed the combined effects of chemotherapeutic agents used with TNF. Alkylating agents such as cyclophosphamide altered the antitumor effect qualitatively, leading to complete regression which TNF alone could not achieve. The mechanism, behind the enhancement of endogenous TNF production and expression of mRNA of various cytokines by the combination of chemotherapeutic agents with TNF inducer was investigated in Meth A fibrosarcoma. METHODS:Seven days after the inoculation of Meth A fibrosarcoma into BALB/c mice, cyclophosphamide (CY, 100-150 mg/kg) was injected intraperitoneally, and 7 days later endogenous TNF was induced by the intradermal administration of lipopolysaccharide (LPS, 400 micrograms/kg) or intravenous injection of ONO-4007, a synthetic lipid A derivative (30 mg/kg). RESULTS:A combination therapy of LPS or ONO-4007 with CY showed the effect of complete regression in 50-100% of tested mice, while CY, LPSp or ONO-4007 alone did not cause complete regression. The amount of endogenous TNF induced by LPSp or ONO-4007 around a tumor lesion with CY was 4-5 fold higher than that without CY. The expression of mRNA of transforming growth factor-beta was suppressed by CY seven days after the injection, and expressions of mRNA of IL-1 beta and TNF-alpha were augmented by the administration of CY 1 to 3 hours after the administration of ONO-4007. CONCLUSION:Some chemotherapeutic agents thus appear to augment the antitumor effect of TNF around tumor lesions, leading to tumor regression through a mechanism in which the agent changes the host's immune status, especially around a tumor lesion and pattern shift of cytokines from Th2 to Th1.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Inagawa H,Nishizawa T,Honda T,Nakamoto T,Takagi K,Soma Gsubject
Has Abstractpub_date
1998-09-01 00:00:00pages
3957-64issue
5Deissn
0250-7005issn
1791-7530journal_volume
18pub_type
杂志文章abstract::Chronic lymphocytic leukaemia remains the most common adult leukaemia in Western countries. In this review we tried to give an overview of the important prognostic markers and the developments in this field. We also reflected about the accumulative character of the disease and the influence of the micro-environment on...
journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:2009-02-01 00:00:00
abstract::This report describes a precise molecular analysis of a rare case of Philadelphia chromosome (Ph) positive acute myeloid leukemia (AML) (FAB classification M2). Phenotypic markers were positive for cells of the myeloid lineage, but negative for B cell and T cell lineage. The leukemic cells carried a Philadelphia chrom...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:CYP3A4 is the most abundant xenobiotic-metabolizing cytochrome P450 isoform. We examined the structural features of the CYP3A4 molecule with regard to ligand access. MATERIALS AND METHODS:The deleted amino acid sequences of X-ray data sets of CYP3A4s were complemented by molecular modeling techniques. Molec...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2009-03-01 00:00:00
abstract::We describe the case of an 80-year-old man with hepatocellular carcinoma (HCC) who developed tracheal obstruction due to peritracheal lymph node metastasis. A metastatic tumor that protruded into the airway was ablated using a neodymium yttrium-aluminium-garnet laser and then a self-expandable metallic stent (SEMS) wa...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND/AIM:Forodesine inhibits purine nucleoside phosphorylase, resulting in an accumulation of intracellular dGTP and consequently cell death. 9-β-D-Arabinofuranosylguanine (ara-G) is an active compound of nelarabine that is intracellularly phosphorylated to a triphosphate form, which inhibits DNA synthesis. Both ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND/AIM:AZD8055 is an inhibitor of mammalian target of rapamycin (mTOR) that can suppress both mTOR complex 1 (mTORC1) and mTORC2. This study investigated the antitumor effects of AZD8055 on colon cancer. MATERIALS AND METHODS:The effects of AZD8055 on proliferation, apoptosis, and cell cycle of colon cancer ce...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12369
更新日期:2018-03-01 00:00:00
abstract::We have previously found that in one of two human melanoma cell lines, potent increase in the polyamine catabolizing enzyme, spermidine/spermine N1-acetyltransferase (SSAT), correlate with growth sensitivity to the spermine analog, N1, N12-bis(ethyl) spermine (BESPM). Herein, we examine the generality of this SSAT res...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract:BACKGROUND:Methylenetetrahydrofolate reductase (MTHFR) plays a role in DNA biosynthesis, methylation and repair in actively dividing cells by acting on folate metabolism. A common C677T polymorphism in the gene for MTHFR leads to an enzyme with decreased activity. MTHFR polymorphisms have been studied in various cancer...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2006-05-01 00:00:00
abstract::Amifostine (Ethyol, WR-2721) has been clinically used in combination with high dose therapy of neuroblastoma stage 4 with melphalan, carboplatin and VP-16 in 14 patients. The amifostine group was compared to a historical control group of 24 comparably-treated patients. There were no significant differences regarding t...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2000-11-01 00:00:00
abstract:BACKGROUND:In vitro studies have indicated that epidermal growth factor receptor (EGFR) may intensify signaling output by the receptor's overexpression, heterodimerization with HER-2, or autocrine expression of ligands. The purpose of the present study was to evaluate the correlation between EGFR and its related protei...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
abstract::Over 600 analogues of mitomycin C (MMC) have been made in the past and more recently a number of Mitomycin A (MMA) derivatives have been prepared. Since many of the MMA type had the same organic side chain at the 7-position as previously prepared MMC analogues it was of interest to see if the biological effects of MMC...
journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:1989-07-01 00:00:00
abstract::The melastatin-like transient receptor potential M2 (TRPM2) channel is a Ca2+ permeable channel that is activated by reactive oxygen species (ROS), and its activation induces necrotic cell death. The effect of insertion of TRPM2 into A172 human glioblastoma cells (A172 cells) was investigated. The insertion of TRPM2 c...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2007-11-01 00:00:00
abstract:AIM:The aim of the study was to identify novel biomarkers that are vital for improving management of patients with gastric cancer (GC). MATERIALS AND METHODS:An RNA-sequencing analysis was conducted using gastric tissue from patients with metastatic GC. In vitro cell functions were evaluated by siRNA-mediated knockdow...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13820
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND:Plasmacytoid dendritic cells (PDCs) infiltrating solid tumor tissues and draining lymph nodes of head and neck squamous cell carcinoma (HNSCC) show an impaired immune response. Immunosuppressive cytokines secreted by HNSCC have been recognized to account for reduced interferon-alpha (IFN-alpha) production, w...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND:Initial U.S.A. breast cancer screening rates have risen, but not repeat screening, especially among low-income minority populations. Latinas are particularly at-risk of underscreening. Consequently, late-detection is common, with increased risk of dying after diagnosis. Why women with low-income, particularl...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2007-11-01 00:00:00
abstract::Basal cell carcinoma (BCC) is a locally invasive neoplasm, rarely metastatic, yet capable of significant local destruction and disfigurement. Invasion into the bone is uncommon and only a few cases of invasion into facial bones, but never to the mandible or maxilla, have been described. We report three patients with B...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract::The effect on liver tissue of glutathione administration to rats treated for 7-14 days with 2-acetylaminofluorene was investigated. The DNA damage induced by the hepatotoxic agent and evaluated by the alkaline elution technique was significantly reduced by glutathione. Furthermore, GSH administration maintained liver ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1986-11-01 00:00:00
abstract::This study was designed to determine whether circulating cancer cells in patients with gastric cancer can be identified by a RT-PCR method and to assess the clinical significance of the hematogenic dissemination of cancer cell in gastric cancer patients. A total of 41 patients with gastric cancer were enrolled in this...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2000-05-01 00:00:00
abstract::The relationship between human papillomavirus (HPV) infection and breast cancer is controversial. In this study, paraffin-embedded tissue blocks prepared from 72 patients with benign, premalignant or malignant mammary lesions were randomly collected from the Shanghai region of China and Tokushima in Japan. DNA specime...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract:BACKGROUND/AIM:L-type amino acid transporter 1 (LAT1) is highly expressed in various human cancers. However, the clinicopathological significance of LAT1 and 4F2 cell surface antigen (4F2hc) in patients with colorectal cancer (CRC) is unknown. The aim of this study was to clarify the prognostic significance of LAT1 exp...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13375
更新日期:2019-05-01 00:00:00
abstract::The belief that n-3 polyunsaturated fatty acids are in general cytotoxic to tumor cells appears not to be accurate. Of four tumor cell lines exposed to 35 microM docosahexaenoic acid (DHA, 22:6 n-3), we found only one (A-427, lung carcinoma) to be sensitive, whereas three (A-172, A549 and SK-LU-1) in fact were stimula...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract:UNLABELLED:In a previous report we noted that cyclooxygenase-2 (COX-2) expression in clinical colorectal cancer is closely related to liver metastasis and survival. The aim of the present study was to clarify the role of COX-2 in liver metastasis and to examine the potential for a selective COX-2 inhibitor as a novel t...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::Gross cystic disease (GCD) represents an advanced form of fibrocystic disease of the breast. Bearers of macrocysts have been reported to be at risk of developing breast cancer. Natural killer (NK) cells are a lymphocyte subset deeply involved in immunosurveillance against neoplasia. We investigated whether breast cyst...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
abstract:BACKGROUND:MicroRNAs (miRNAs), which are endogenously expressed regulatory noncoding RNAs, have an altered expression in tumor tissues. MiRNAs regulate cancer-related processes such as cell growth and tissue differentiation, and therefore, might function as oncogenes or tumor-suppressor genes. The aim of our study was ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-09-01 00:00:00
abstract::D-Penicillamine, a structural analog of cysteine, has the ability to chelate metal ions and reacts with cysteine. We have shown earlier that D-Penicillamin is a potential inhibitor of tat-mediated transactivation of HIV-1-LTR (14) and possesses anti-HIV-1 activity (23). Following this approach, we evaluated the anti-t...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract::The use of lysozyme preparations in the treatment of tumor diseases is based on more than 30 years' experience, using different methodologies and showing various results from which suggestions on the mechanism of action were derived. Lysozymes have no established place in the treatment of human tumors in spite of some...
journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:1989-05-01 00:00:00
abstract::The cytotoxicity of beta-cyclodextrin benzaldehyde inclusion compound (CDBA) against human normal and cancer cell lines was investigated. CDBA showed slightly higher cytotoxicity against human tumor cell lines, as compared to normal cells, with a tumor-specificity index of 2.2. Human myelogenous leukemia cell lines (H...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Although well-acknowledged in vivo, spontaneous death of cancer cells in vitro is less widely appreciated. MATERIALS AND METHODS:Colony formation was studied in untreated control plates of standard clonogenic assays and measurements of actual and potential doubling times performed in asynchronous cultures o...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND:In order to decrease surgery-related morbidity, we evaluated the reliability of the evaluation of lymph node metastasis in patients with uterine corpus cancer by positron-emission tomography (PET) with 2-[(18)F]fluoro-2-deoxy-D-glucose (FDG) before surgical staging. MATERIALS AND METHODS:Patients with newly...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-09-01 00:00:00
abstract::The complication of metastasis from the primary tumor site to the distant organ is difficult to control. Tumor cells usually spread through the vascular system: lymphatics and/or blood; or by direct extension into adjacent sites. Transplantable prostate adenocarcinoma (PA-III) cells in L-W rats produces a tumor in the...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1993-05-01 00:00:00