Abstract:
BACKGROUND:Ewing's sarcoma is an aggressive bone and soft tissue tumor with a high incidence in children and adolescents. Due to its high malignancy and poor prognosis, identification of novel biomarkers for intervention therapies is necessary to improve outcome. The EWS/FLI1 fusion gene is a characteristic of Ewing's sarcoma in most cases. Sex determining region Y-box 2 (SOX2) is a primary target of EWS/FLI1. It has been identified as an oncogene and linked to apoptotic resistance in several types of cancer. However, its role and regulatory mechanisms in Ewing's sarcoma are largely unknown. METHODS:We systematically investigated the role of SOX2 in Ewing's sarcoma cell lines, human tissue samples and xenograft models. The expression of SOX2 was detected in Ewing's sarcoma samples by WB and IHC. siRNAs were used to knockdown EWS/FLI1 and SOX2 in A673 and RD-ES cell lines with the efficiencies tested by qRT-PCR and WB. The effect of SOX2 on cell cycle and apoptosis was determined by Flow cytometric and TUNEL assays. Akt overexpression was performed with plasmid. The protein expression of the corresponding factors was examined by WB analysis. Inhibition of SOX2 in vivo was performed by siRNA against SOX2 in xenograft models, and the protein expression of the regulators testified in vitro was examined in xenograft tumors by IHC and WB. RESULTS:The results confirmed that SOX2 was highly expressed in Ewing's sarcoma and was the target of EWS/FLI1. SOX2 advanced Ewing's sarcoma cell survival and proliferation by regulating p21, p27 and cyclin-E to facilitate G1/S phase transition and mediating caspase-3, PARP via both extrinsic (Fas and caspase-8) and intrinsic (caspase-9, Bad, Bcl-2 and XIAP) apoptotic pathways to restrain cell apoptosis. Additionally, SOX2 regulated the cell-cycle progression and apoptosis via activation of the PI3K/Akt signaling pathway. The mechanisms were proved both in vitro and in vivo. CONCLUSIONS:The results demonstrate that SOX2 played a central role in promoting Ewing's sarcoma cell proliferation in vitro and in vivo with the underlying mechanisms expounded. These findings suggest that SOX2 may serve as a potential biomarker for targeted intervention in Ewing's sarcoma.
journal_name
J Exp Clin Cancer Resjournal_title
Journal of experimental & clinical cancer research : CRauthors
Ren C,Ren T,Yang K,Wang S,Bao X,Zhang F,Guo Wdoi
10.1186/s13046-016-0321-3subject
Has Abstractpub_date
2016-03-11 00:00:00pages
44eissn
0392-9078issn
1756-9966pii
10.1186/s13046-016-0321-3journal_volume
35pub_type
杂志文章abstract::We evaluated the efficacy and toxicity profile of single-agent docetaxel administered in daily clinical practice at low-dose regimen in 37 pre-treated elderly patients with metastatic breast cancer previously exposed to chemotherapy. Docetaxel was employed by physician's preference according to a weekly (8 patients, 2...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 临床试验,杂志文章
doi:
更新日期:2005-03-01 00:00:00
abstract:BACKGROUND:Pancreatic ductal adenocarcinoma is one of the leading causes of cancer-related death worldwide. Immune checkpoint blockade therapy, including anti-PD-1 and anti-PD-L1, is a new therapeutic strategy for cancer treatment but the monotherapy with PD-L1 inhibitors for pancreatic cancer is almost ineffective for...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-019-1044-z
更新日期:2019-02-01 00:00:00
abstract::The number of colorectal tumors per mouse induced by 1,2-dimethylhydrazine in transgenic (Tg) mice carrying human c-Ha-ras genes was significantly reduced by ingestion of apple pectin (AP) or a culture condensate of Bifidobacterium longum(MB) compared with a control diet and non-Tg mice. However, there were no differe...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2001-03-01 00:00:00
abstract::Several models have been generated to estimate breast cancer risk and to predict the probability to identify a BRCA1 or BRCA2 germ line mutation. Each model, based on a slightly different study design and purpose, takes into account a definite number of relevant parameters and ultimately pertains to a specific cohort ...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2002-09-01 00:00:00
abstract:BACKGROUND:Celastrol, a triterpene compound derived from the traditional Chinese medicine Tripterygium wilfordii, has been reported to possess potential antitumor activity towards various malignancies. However, the effect of celastrol on glioma cells and the underlying molecular mechanisms remain elusive. METHODS:Glio...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-019-1173-4
更新日期:2019-05-03 00:00:00
abstract::Arsenic trioxide has shown substantial efficacy in treating patients with relapsed or refractory acute promyelocytic leukemia (APL) as well as solid tumors. Arsenic can act through a considerable number of different pathways including mitochondrial respiration and tubulin formation, affecting growth, blood flow, diffe...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND:Endometriosis is a gynecological disease defined by the histological presence of endometrial glands and stroma outside the uterine cavity. Women with endometriosis have an increased risk of different types of malignancies, especially ovarian cancer and non-Hodgkin's lymphoma. Though there are several theorie...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-28-49
更新日期:2009-04-09 00:00:00
abstract::The aim of this work is the in vitro study of the late effects of single proton irradiation on HTB63 human melanoma cell growth, cell cycle and cell death. The experimental conditions were focused on analyzing the effects of irradiation on the periphery of tumour that can be, in clinical practice, close to critical or...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2001-03-01 00:00:00
abstract:BACKGROUND AND AIMS:Anti-HER-2 antibodies targeting distinct epitopes have different biological functions on cancer cells. In a previous study, we demonstrated that anti-HER-2 engineering antibody ChA21 was able to bind to subdomain I of HER-2 extracellular domain. In this study, The effects of ChA21 on growth and apop...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-29-23
更新日期:2010-03-10 00:00:00
abstract::The aim of the present study was to assess the role of virtual cystoscopy in the identification of bladder tumors. Fifteen patients (11 men and 4 women, median age: 61 years, range: 46-74 years) with a positive finding of bladder tumor at fiber-optic cystoscopy were studied by multislice-CT. Scans were downloaded to a...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2003-03-01 00:00:00
abstract::This study was conducted to establish a feasible intraperitoneal xenograft model in nude mice which mimicked the dynamic progression of human ovarian cancer and to explore its potential for preclinical trials. A human ovarian tumor line SKOV3 was originally injected s.c. to develop tumors; then the tumors were harvest...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2007-12-01 00:00:00
abstract:BACKGROUND:Aberrant expression of Wiskott-Aldrich syndrome protein interacting protein family member 1 (WIPF1) contributes to the invasion and metastasis of several malignancies. However, the role of WIPF1 in human pancreatic ductal adenocarcinoma (PDAC) remains poorly understood. METHODS:Human pancreatic cancer sampl...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-018-0848-6
更新日期:2018-07-24 00:00:00
abstract::Telomeres, the nucleoprotein structures that cap the ends of eukaryotic chromosomes, play important and multiple roles in tumorigenesis. Functional telomeres need the establishment of a protective chromatin structure based on the interplay between the specific complex named shelterin and a tight nucleosomal organizati...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章,评审
doi:10.1186/s13046-019-1030-5
更新日期:2019-01-17 00:00:00
abstract::Immune checkpoint inhibitors (ICIs) have made a breakthrough in the treatment of different types of tumors, leading to improvement in survival, even in patients with advanced cancers. Despite the good clinical results, a certain percentage of patients do not respond to this kind of immunotherapy. In addition, in a fra...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章,评审
doi:10.1186/s13046-020-01721-9
更新日期:2020-11-09 00:00:00
abstract::RANKL/RANK/OPG system consists of three essential signaling molecules: i) the receptor activator of nuclear factor (NF)-kB-ligand (RANKL), ii) the receptor activator of NF-kB (RANK), and iii) the soluble decoy receptor osteoprotegerin (OPG). Although this system is critical for the regulation of osteoclast differentia...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章,评审
doi:10.1186/s13046-018-1001-2
更新日期:2019-01-08 00:00:00
abstract:BACKGROUND:As the expression of human sperm protein 17 (Sp17) in normal tissue is limited and the function is obscure, its aberrant expression in malignant tumors makes it to be a candidated molecular marker for tumor imaging diagnosis and targeting therapy of the diseases.The aim of this research is to evaluate the ta...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-30-25
更新日期:2011-03-03 00:00:00
abstract:BACKGROUND:Infection with the hepatitis B virus (HBV) is closely associated with the development of hepatocellular carcinoma (HCC). The osmoregulatory transcription factor nuclear factor of activated T-cells 5 (NFAT5) has been shown to play an important role in the development of many types of human cancers. The role o...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-017-0618-x
更新日期:2017-10-19 00:00:00
abstract:UNLABELLED:Stem cells are a relevant source of information about cellular differentiation, molecular processes and tissue homeostasis, but also one of the most putative biological tools to treat degenerative diseases. This review focuses on human stem cells clinical and experimental applications. Our aim is to take a c...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章,评审
doi:10.1186/1756-9966-30-9
更新日期:2011-01-17 00:00:00
abstract:BACKGROUND:Cancer and its therapies increase the risk of venous thromboembolism. Compared to patients without cancer, patients with cancer anticoagulated for venous thromboembolism are more likely to develop recurrent thrombotic events and major bleeding. Addressing all important outcomes including harm is of great imp...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章,评审
doi:10.1186/1756-9966-27-21
更新日期:2008-07-18 00:00:00
abstract::Escherichia coli cytosine deaminase (CD), which is a prokaryotic enzyme, converts nontoxic prodrug 5-fluorocytosine (5-FC) into the toxic chemotherapeutic agent 5-fluorouracil (5-FU). To investigate an enzyme/prodrug gene therapy for colorectal cancer, using adenoviral gene transfer of the E. coli CD gene associated w...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2000-03-01 00:00:00
abstract:BACKGROUND:Recently, leucine-rich repeats and immunoglobulin-like domains 1 (LRIG1), a negative regulator of EGFR, was discovered is a novel agent for suppressing bladder cancer. The aim of this study was to investigate the impact of LRIG1 on the biological features of aggressive bladder cancer cells and the possible m...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-32-101
更新日期:2013-12-08 00:00:00
abstract::RNA interference (RNAi) has been successfully applied in suppression of hepatic cancer genes. In hepatocelluar carcinoma cell, one methionine adenosyltransferase (MAT) isozyme, MATII was found to have two catalytic subunits which were encoded by MAT2A and MAT2beta respectively. During tumorigeness of hepatocelluar car...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-27-72
更新日期:2008-11-21 00:00:00
abstract:BACKGROUND:Kaposi Sarcoma (KS) is a malignancy of endothelial skin cells with multifocal localization on the skin, lymph nodes and visceral organs. Although all clinical variants are associated with HHV-8 infection, specific differences in the clinical onset and in the natural history of AIDS-KS and Classic-KS have bee...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-30-40
更新日期:2011-04-13 00:00:00
abstract::We report the long-term results of a series of patients affected by advanced epithelial ovarian cancer treated with the PEC combination (cisplatin 60 mg/m2, epirubicin 60 mg/m2 and cyclophosphamide 750 mg/m2, all at day 1, every 21 days). Response was evaluated after three cycles, and treatment continued in responsive...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2000-03-01 00:00:00
abstract::In the deletion mapping of chromosome (chr) 9 in head and neck lesions of the Indian patient population by microsatellite markers, we have identified four discrete areas (D1-D4) with high loss of heterozygosities (LOHs) viz. 9p24-p23 (D1), 9p22-p21 (D2), 9q11-q13 (D3) and 9q22.3 (D4) regions. The deletions in D2 and D...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 历史文章,杂志文章
doi:
更新日期:2003-06-01 00:00:00
abstract:BACKGROUND:Interleukin-32 (IL-32) has been associated with various diseases. Previous studies have shown that IL-32 inhibited the development of several tumors. However, the role of IL-32γ, an isotype of IL-32, in skin carcinogenesis remains unknown. METHODS:We compared 7,12-Dimethylbenz[a]anthracene/12-O-Tetradecanoy...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-018-0943-8
更新日期:2018-11-28 00:00:00
abstract:BACKGROUND:The aim of this study was to evaluate the potential association between single nucleotide polymorphisms related response to radiotherapy injury, such as genes related to DNA repair or enzymes involved in anti-oxidative activities. The paper aims to identify marker genes able to predict an increased risk of l...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 临床试验,杂志文章
doi:10.1186/1756-9966-31-7
更新日期:2012-01-24 00:00:00
abstract:BACKGROUND:Oncogenic roles of epidermal growth factor receptor pathway substrate no.8 (EPS8) have been widely reported in various tumors, making targeting of EPS8 an appealing prospect. Here, we describe the role of EPS8 in acute myeloid leukemia (AML) and consider the potential of EPS8 as an anti-AML target. Nuclear l...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-018-0682-x
更新日期:2018-01-22 00:00:00
abstract:BACKGROUND:Statins are inhibitors of 3-hydroxy-3-methylglutaryl-coenzyme A reductase, the rate-limiting enzyme in cholesterol synthesis. The inhibition of this key enzyme in the mevalonate pathway leads to suppression of cell proliferation and induction of apoptosis. However, the molecular mechanism of apoptosis induct...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-30-74
更新日期:2011-08-10 00:00:00
abstract::Primary lymphoma of the breast is a rare disease that has been estimated to represent from 0.05% to 0.53% of all malignant breast tumors and approximately 2.2% of all extranodal lymphomas. The aim of this study is to review all cases of primary lymphoma of the breast at the Institute of Oncology and Radiology of Serbi...
journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00