Abstract:
:Constitutive activation of signal transducer and activator of transcription 3 (STAT3) has been indicated as a novel cancer drug target, since it plays an important role in diverse oncogenic processes including survival, cell proliferation and migration. Emerging STAT3 inhibitors have demonstrated efficacy in cancer cells and animal tumor models. It is well known that most solid tumors are characterized by hypoxia, but it is not clear if hypoxic conditions affect activity of STAT3 inhibitors. To examine this, two STAT3 inhibitors were tested to investigate their inhibitory efficacy in cancer cells grown under hypoxic conditions compared with those without hypoxia. Cell proliferation, colony formation and western blot assays were performed to examine the differences in the cell viability, proliferation and proteins in the STAT3 pathway. Under hypoxic conditions, the half-maximal inhibitory concentration values for both STAT3 inhibitors were increased compared to normoxic conditions in human pancreatic cancer, medulloblastoma and sarcoma cell lines. In addition, the ability of both STAT3 inhibitors to inhibit colony formation in pancreatic cancer, medulloblastoma and sarcoma cell lines was reduced under hypoxic conditions when compared to cells under normoxic conditions. Furthermore, there was an increase in phosphorylated STAT3 levels in cancer cells under hypoxic conditions, suggesting this may be one of the mechanisms of resistance. In summary, the results presented here provide a novel finding of STAT3 inhibitor activity under hypoxic conditions and indicate that under such low oxygen conditions, the anticancer efficacy of STAT3 inhibitors was indeed hampered. These results highlight the need to develop new therapeutic strategies to overcome the resistance of cancer cells to STAT3 inhibitors under hypoxic conditions.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Tian J,Xiao H,Wu R,Cao Y,Li C,Xu R,Pierson CR,Finlay JL,Yang F,Gu N,Lin Jdoi
10.21873/anticanres.11347subject
Has Abstractpub_date
2017-02-01 00:00:00pages
547-553issue
2eissn
0250-7005issn
1791-7530pii
37/2/547journal_volume
37pub_type
杂志文章abstract:BACKGROUND:In order to investigate the mechanism of the effects of the anticancer drug adamantyl maleimide (AMI) on the in vitro growth of a human gastric carcinoma cell line (SC-M1), the membrane protein conformation on the cell surface after treatment with AMI was studied. MATERIALS AND METHODS:The interaction of AM...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-09-01 00:00:00
abstract:BACKGROUND/AIM:Due to their unique composition of health-promoting compounds, the consumption of hazelnuts may contribute to the prevention of colon cancer. MATERIALS AND METHODS:Since hazelnuts are often consumed roasted, the impact of different roasting conditions (RC1=140.6°C/25 min, RC2=155.1°C/20 min and RC3=180....
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12195
更新日期:2018-01-01 00:00:00
abstract::Angiosarcoma of the breast is a malignant tumour of vascular endothelial cells. It is a rare and difficult tumour to treat. The authors report a case of cutaneous radiation-associated angiosarcoma treated with paclitaxel chemotherapy. A few days after drug administration, bleeding of skin lesions was observed and the ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2006-11-01 00:00:00
abstract::Prospective studies of dose adaptation of continuous 5FU infusion combined with cisplatin have shown that pharmacologically guided dosing was feasible in the treatment of head and neck carcinomas. Adaptative dosing results in reduced haematological toxicity, but few data are available for clinical response rate. Preli...
journal_title:Anticancer research
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1994-11-01 00:00:00
abstract:AIMS AND BACKGROUND:Radiation therapy holds a fundamental role in oncological emergencies such as superior vena cava syndrome, spinal cord compression and endocranial hypertension. The purpose of our study was, by comparing schedules of treatment, to confirm the efficacy of hypofractionated radiation therapy. METHODS:...
journal_title:Anticancer research
pub_type: 临床试验,杂志文章
doi:
更新日期:2001-05-01 00:00:00
abstract::Twenty-seven children with abdominal Burkitt's lymphoma (stage III), who had achieved complete remission, were entered into a prospective controlled trial of adjunct treatment with Epstein-Barr virus (EBV)-specific transfer factor (TF). Two patients treated with TF and 2 controls relapsed early (less than or equal to ...
journal_title:Anticancer research
pub_type: 临床试验,杂志文章
doi:
更新日期:1990-09-01 00:00:00
abstract::In a previous study we determined that the fine needle aspiration (FNA) biopsy of thyroid produces 16% of false-negative cases (FNC). In order to determine the value of quantitative cytology (QC) as a tool for predicting the FNC result, thirty-seven cases, 18 of which were operated (histologically benign: 13; malignan...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND/AIM:This study aimed to identify the survival benefit of intrahepatic tumour control by hepatic arterial infusion chemotherapy (HAIC) in hepatocellular carcinoma (HCC) patients with portal vein tumour thrombus (PVTT) or extrahepatic metastasis. PATIENTS AND METHODS:Between 2010 and 2017, a total of 187 cons...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13542
更新日期:2019-07-01 00:00:00
abstract::Induction of apoptosis by green tea polyphenols has been observed in various tumor cell systems, but whether green tea polyphenol-induced apoptosis requires caspase 3 for execution has not been confirmed. We previously reported that green tea polyphenol-induced apoptosis involved Apaf-1 accumulation and caspase 3 acti...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND:Disseminated tumor cells (DTCs) in bone marrow (BM) occur in 30-40% of primary breast cancer patients. An impaired bone microenvironment may lead to reduced bone density and osteoporosis affecting the BM as a homing site for DTCs. The bone mineral density (BMD) and its correlation to DTC in BM was evaluated....
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2011-12-01 00:00:00
abstract::The role of combination chemotherapy regimens in the management of ovarian cancer patients with tumors resistant to platinum compounds has not yet been defined. This multicenter prospective phase II study evaluated the activity and toxicity of the docetaxel-plus-irinotecan combination in ovarian cancer patients whose ...
journal_title:Anticancer research
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:2005-09-01 00:00:00
abstract:BACKGROUND:Gastrointestinal stromal tumors are uncommon intra-abdominal tumors. In fewer than 5% of cases, they originate primarily from the mesentery, omentum or peritoneum and these extra-gastrointestinal stromal tumors tend to have characteristics similar to gastrointestinal stromal. CASE REPORT:We report a case of...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2014-02-01 00:00:00
abstract:AIM:To report the outcomes of salvage robot-assisted radical prostatectomy (S-RaRP). PATIENTS AND METHODS:Fourteen patients underwent S-RaRP. The mean initial prostatic-specific antigen level was 14.3 ng/ml and mean Gleason score was 6.93. Initial definitive treatment was external irradiation in 11 cases, cyberknife i...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.11550
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:Gemcitabine (2'-deoxy-2'-difluorodeoxycytidine: Gemzar) (GEM) appears to be the only effective anticancer drug for pancreatic cancer, but it has little impact on outcome due to a high level of inherent and acquired tumor resistance. Our previous proteomic study demonstrated that the expression of three spots...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Urocortin and corticotropin-releasing factors (CRFs) and their receptors are expressed in many organs, including the central nervous system. In this study, the expression of mRNAs of urocortin 1, 2, 3, and CRF and CRF receptors 1 and 2 in malignant glioma, was examined. MATERIALS AND METHODS:The RNAs of hum...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2012-12-01 00:00:00
abstract::The antitumoral and immunostimulating properties of rViscumin (recombinant mistletoe lectin) were investigated in two mouse tumor models. After intravenous inoculation with RAW-117-P or L-1 sarcoma cells in Balb/c mice, rViscumin was given s.c. at non-toxic doses ranging from 0.3 to 150 ng rViscumin/kg. One set of exp...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND:The proportion of geriatric gastric cancer (GC) patients with comorbidities has been increasing in Japan. This study was designed to evaluate the prognostic influence of the extent of lymph node dissection (END) and perioperative morbidities in patients with GC. PATIENTS AND METHODS:Between 2008 and 2013, t...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2016-04-01 00:00:00
abstract::The effects of silybinin, an antioxidant, on the pharmacokinetics of tamoxifen and its metabolite, 4-hydroxytamoxifen, were investigated in rats. A single dose of tamoxifen was administered intravenously (2 mg/kg) and orally (10 mg/kg) without or with silybinin (0.5, 2.5 and 10 mg/kg) to rats. Silybinin significantly ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-01-01 00:00:00
abstract::Understanding the molecular basis of human disease has been the corner-stone of rationally designed molecular therapies. Medicine has a long history of treating patients with cell therapies (i.e., blood transfusions) and protein therapies (i.e., growth factors and cytokines). Gene therapies are the newest therapeutic ...
journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND/AIM:3,4',7-O-trimethylquercetin (34'7TMQ), a derivative of quercetin, inhibited ovarian cancer cell migration and invasion without affecting proliferation. In this study, the apoptotic effect of 34'7TMQ on three cancer cell lines (CRL-1978, CRL-11731, SK-OV-3) was evaluated. MATERIALS AND METHODS:Expression...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12835
更新日期:2018-09-01 00:00:00
abstract::Thalidomide was recently suggested to be angiogenesis-inhibitor following the demonstration of its activity in a rabbit cornea micropocket model. The purpose of the present study was to test its efficacy in solid tumors in mice. B16-F10 melanoma and CT-26 colon carcinoma cells were injected subcutaneously, intravenous...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-11-01 00:00:00
abstract::Eighteen patients with Zollinger-Ellison syndrome were studied with 111In-pentetreotide SPECT in order to localize gastrinoma, the tumour responsible for this pathology. NMR imaging was also carried out. Eight patients were operated. 111In-pentetreotide was reinjected 4 hours before operation and the radioactivity of ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-05-01 00:00:00
abstract::Although some types of intestinal metaplasia are considered to be potentially pre-malignant lesions leading to gastric carcinoma, their high frequency and variability limit their usefulness as early markers of malignant progression. The present study was carried out to search for parameters which could be used in conj...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-03-01 00:00:00
abstract::UGP (Urinary gonadotropin peptide) also know as urinary gonadotropin fragment (UGF) or the beta-core of hCG (c beta hCG), was identified as a peptide with a molecular weight of 10.5 kD, having the same amino acid sequence as the core section of the beta-subunit of human chorionic gonadotropin. UGP has been found in no...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-07-01 00:00:00
abstract:BACKGROUND:Vascular endothelial growth factor (VEGF) is one of the most important factors for angiogenesis in various tumors. However, its clinical significance in extrahepatic biliary tract carcinoma remains unclear. MATERIALS AND METHODS:To clarify the association of VEGF expression with the clinicopathological feat...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1999-05-01 00:00:00
abstract::Adenovirus(ADV) mediated thymidine kinase(TK) gene therapy followed by ganciclovir(GCV) administration is widely used in different types of cancer. ACV shares the same mechanism of selective cell killing in ADV/TK positive cells as GCV and can be used at 4.5 times higher doses in patients without significant side effe...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:Pemetrexed-induced eyelid edema is a rare side-effect of pemetrexed treatment. PATIENTS AND METHODS:Retrospective analysis of the incidence and severity of eyelid edema was conducted in patients treated with pemetrexed in a single institution. RESULTS:Eighty-six patients received pemetrexed-containing chem...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Measurement of cell survival as performed by the differential staining cytotoxicity (DiSC) assay allows for a comprehensive prediction of individual chemotherapy response. This assay has not reached routine clinical application because of its several limitations. In order to improve the DiSC assay, we develo...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2013-06-01 00:00:00
abstract:BACKGROUND:The results of chemotherapy in patients with advanced, hormone-refractory prostate cancer (HRPC) have been disappointing. Mitoxantrone has been used in the past for palliation, but it does not prolong survival. It was recently demonstrated that docetaxel is able to improve median survival as compared to mito...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2005-11-01 00:00:00
abstract::Throughout the world, breast cancer is among the major causes of cancer-related death and is the most common cancer found in women. The development of cancer molecular knowledge has surpassed the novel concept of cancer biology and unraveled principle targets for anticancer drug developments and treatment strategies. ...
journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:10.21873/anticanres.12502
更新日期:2018-05-01 00:00:00