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Cancer Cell International

Encheng Yang, Xiao Li, Ningyi Jin
AIM: This study was aimed to evaluate the therapeutic efficiency of a non-virus based specific chimeric multi-domain DNA transferred with apoptin in human hepatocellular carcinoma (HCC) HepG-2 cells in vitro and in mice H22 cells in vivo. METHODS: We firstly constructed the multi-domain recombinant chimeric proteins based on recombinant proteins [G (yeast GAL4), NG (none GAL4), TG (GAL4 + Tat protein) and TNG (Tat protein)] and pUAS-Apoptin plasmid, and transfected them into human HepG-2 cells...
2016: Cancer Cell International
Hao Chen, Robert Klein, Stacy Arnold, Setsuko Chambers, Wenxin Zheng
BACKGROUND: Mounting evidence suggests the fallopian tube as the origin for ovarian high grade serous carcinoma (HGSC). We attempted to identify the tubal cytological features that allow us to distinguish malignant from benign conditions. METHODS: Tubal specimens (n = 56) were collected from patients who underwent bilateral salpingo-oophorectomy (BSO) due to various clinical indications. A standard procedure to collect fallopian tube brushings from freshly received surgical specimens was developed...
2016: Cancer Cell International
Radhakrishnan Vishnubalaji, Shijun Yue, Musaad Alfayez, Moustapha Kassem, Fei-Fei Liu, Abdullah Aldahmash, Nehad M Alajez
BACKGROUND: Molecular profiling of colorectal cancer (CRC) based on global gene expression has revealed multiple dysregulated signalling pathways associated with drug resistance and poor prognosis. However, the role of BMP2 signaling in CRC is not fully characterised. METHODS: Bioinformatics data analysis were conducted on the GSE21510 dataset. Leniviral technology was utilized to stably express BMP2 in the HCT116 CRC model. Gene expression profiling was conducted using Agilent microarray platform while data normalization and bioinformatics were conducted using GeneSpring software...
2016: Cancer Cell International
Jian-Jun Li, Jie Luo, Jing-Ning Lu, Xiao-Na Liang, Yi-Huan Luo, Yong-Ru Liu, Jie Yang, Hua Ding, Gui-Hui Qin, Li-Hua Yang, Yi-Wu Dang, Hong Yang, Gang Chen
OBJECTIVE: To explore the relationship between tumor necrosis factor receptor-associated factor 6 (TRAF6) and the clinicopathological features in HCC as well as its biological function. METHODS: Totally, 412 liver tissues were collected, including 171 hepatocellular carcinoma (HCC) and their corresponding non-tumor tissues, 37 cirrhosis and 33 normal liver tissues. The expression of TRAF6 was assessed by immunohistochemistry. Then, analysis of the correlations between TRAF6 expression and clinicopathological parameters in HCC was conducted...
2016: Cancer Cell International
Kyoung Su Sung, Jin-Kyoung Shim, Ji-Hyun Lee, Se Hoon Kim, Sohee Park, Tae-Hoon Roh, Ju Hyung Moon, Eui-Hyun Kim, Sun Ho Kim, Su Jae Lee, Yong Min Huh, Seok-Gu Kang, Jong Hee Chang
BACKGROUND: A trend of stage-by-stage increase in tumorsphere (TS) formation from glioma samples has been reported. Despite this trend, not all surgical specimens give rise to TSs, even World Health Organization (WHO) grade IV gliomas. Furthermore, it has been reported that differences in overall survival of primary glioblastoma patients depends on the propensity of their tumors to form TSs. However, the weights of fresh specimens vary from one surgical isolate to the next. METHODS: Accordingly, we evaluated the relationship between the weights of surgical specimens in WHO grade IV gliomas with the capacity to isolate TSs...
2016: Cancer Cell International
Hong Chen, Bairong Xia, Tianbo Liu, Mei Lin, Ge Lou
BACKGROUND: Ovarian cancer is a common type of gynecological malignancies, and is the fifth leading cause of cancer-related death in women in the United States. MiR-429 and KIAA0101 have been found to be involved in several human malignancies, respectively. However, the role of miR-429 and KIAA0101, and the correlation between them during development of epithelial ovarian cancer (EOC) remain to be investigated. METHODS: The expression of KIAA0101 in EOC tissues and cells was measured by Quantitative real-time PCR, western blot, and immunochemistry...
2016: Cancer Cell International
Xiaokang Wei, Chuanshun Wang, Chunhui Ma, Wei Sun, Haoqing Li, Zhendong Cai
BACKGROUND: Osteosarcoma is the most common malignancy of bone. Intratumoral hypoxia occurs in many solid tumors, where it is associated with the development of aggressive phenotype. ANRIL has been shown to be a long noncoding RNA that facilitates the progression of a number of malignancies. Yet, few studies have explored the expression pattern of ANRIL in osteosarcoma and the effect of hypoxia on ANRIL. METHODS: We evaluated the expression levels of ANRIL in osteosarcoma tissues, adjacent normal tissues and cells with quantitative real-time polymerase chain reaction...
2016: Cancer Cell International
Seher Berzingi, Mackenzie Newman, Han-Gang Yu
BACKGROUND: Membrane depolarization is associated with breast cancer. Depolarization-activated voltage-gated ion channels are directly implicated in the initiation, proliferation, and metastasis of breast cancer. METHODS: In this study, the role of voltage-gated potassium and calcium ion channel modulation was explored in two different invasive ductal human carcinoma cell lines, MDA-MB-231 (triple-negative) and MCF7 (estrogen-receptor-positive). RESULTS: Resting membrane potential is more depolarized in MCF7 and MDA-MB-231 cells compared to normal human mammary epithelial cells...
2016: Cancer Cell International
Anke Ruedel, Mandy Schott, Thomas Schubert, Anja Katrin Bosserhoff
BACKGROUND: The transmembrane receptor family Roundabout (Robo) was described to have an essential role in the developing nervous system. Recent studies demonstrated that Robo3 shows an altered expression in rheumatoid arthritis as well as in melanoma. CONTEXT AND PURPOSE OF THE STUDY: Until today no detailed studies of the two Robo3 isoforms (Robo3A and Robo3B) and their roles in rheumatoid arthritis synovial fibroblasts, respectively malignant melanoma are available...
2016: Cancer Cell International
Elena de Blas, María Cristina Estañ, María Del Carmen Gómez de Frutos, Javier Ramos, María Del Carmen Boyano-Adánez, Patricio Aller
BACKGROUND: The glycolysis inhibitor 2-deoxy-d-glucose (2-DG) is a safe, potentially useful anti-tumour drug, but its efficacy is normally low when used alone. Recent studies indicated that 2-DG stimulates the PI3K/Akt and MEK/ERK defensive pathways, which limits the apoptotic efficacy in tumour cell lines. We hypothesized that co-treatment with selected polyphenols could improve 2-DG-provoked apoptosis by preventing defensive kinase activation. METHODS: Cell proliferation was measured by cell counting or the MTT assay...
2016: Cancer Cell International
Ruo Chen, Shi-Jie Wang, Yang Zhang, Rong Hou, Jian-Li Jiang, Hong-Yong Cui
BACKGROUND: The acquisition of inappropriate migratory feature is crucial for tumor metastasis. Rho-family GTPases including RhoA are molecular switches that play critical roles in regulating cell movement. We investigated the molecular mechanism underlying CD147 induced RhoA deactivation in hepatocellular carcinoma (HCC) cells. METHODS: Wound-healing assay was performed to study the cell motility. Analysis of RhoA activation in living cells was conducted using RhoA biosensor...
2016: Cancer Cell International
Leopold F Fröhlich, Maria Mrakovcic, Claudia Smole, Kurt Zatloukal
BACKGROUND: Recent studies indicated that histone deacetylase inhibitors (HDACi), a class of anticancer agents, are in addition to their ability of apoptosis induction also capable of provoking autophagy. Promoted by the treatment of malignant uterine sarcoma cells with the HDACi suberoylanilide hydroxamic acid (SAHA), we previously demonstrated predominant dose-dependent activation of autophagy in ESS-1 cells, but prevalent induction of apoptosis in MES-SA cells. METHODS: In order to extend our previous studies, SAHA-treated ESS-1 and MES-SA cells were monitored for protein expression to reveal differences in known markers of apoptosis explaining the different cytotoxic responses...
2016: Cancer Cell International
Ping Liu, Chao Wang, Chengbin Ma, Qiongwei Wu, Wenying Zhang, Guoying Lao
BACKGROUND: To investigate the role of total cellular microRNA (miRNA) in regulating epithelial-to-mesenchymal transition (EMT) during human endometrial endometrioid adenocarcinoma (EEC). METHODS: A miRCURY LNA microRNA array was used to evaluate the miRNA profiles of human EEC tissues and corresponding nontumorous endometriums. An in vitro model of TGF-β induced EMT in HEC-1-A cells was used to investigate the role of miRNAs in the EEC during EMT. The expression of SMAD3, SMAD5, and a panel of EMT markers was detected by Western blot and quantitative PCR...
2016: Cancer Cell International
Patrick Dorn, Colin Charles Tièche, Ren-Wang Peng, Laurène Froment, Ralph Alexander Schmid, Thomas Michael Marti
BACKGROUND: Lung cancer causes the most cancer deaths worldwide, thus there is a urgent need to develop new treatment options. Concurrent chemoradiotherapy has become a common strategy for the treatment of non-resectable solid tumors including non-small cell lung cancer. Pemetrexed is a folic acid antagonist that inhibits the synthesis of precursor nucleotides, whereas ionizing radiation induces DNA damage, the repair of which is dependent on sufficiently high nucleotide levels. In the clinical setting, the pemetrexed-ionizing radiation combination therapy is administered concomitantly...
2016: Cancer Cell International
Hao Wang, Cheng Hang, Xi-Long Ou, Jin-Shan Nie, Yi-Tao Ding, Shi-Gui Xue, Hua Gao, Jian-Xin Zhu
BACKGROUND: Pancreatic cancer is currently one of the leading causes of cancer deaths without any effective therapies. Mir-145 has been found to be tumor-suppressive in various types of cancers. The aim of this study is to investigate the role of miR-145 in pancreatic cancer cells and explore its underlying mechanism. METHODS: Quantitative real time PCR was used to determine the expression level of miR-145 and angiopoietin-2 (Ang-2) mNRA, and the expression level of Ang-2 protein was measured by western blotting...
2016: Cancer Cell International
Youguang Pu, Qiyi Yi, Fangfang Zhao, Haiyan Wang, Wenjing Cai, Shanbao Cai
BACKGROUND: Chemoresistance hinders curative cancer chemotherapy in osteosarcoma (OS), resulting in only an approximately 20 % survival rate in patients with metastatic disease at diagnosis. Identifying the mechanisms responsible for regulating chemotherapy resistance is crucial for improving OS treatment. METHODS: This study was performed in two human OS cell lines (the multi-chemosensitive OS cell line G-292 and the multi-chemoresistant OS cell line SJSA-1). The levels of miR-20a-5p and KIF26B mRNA expression were determined by quantitative real-time PCR...
2016: Cancer Cell International
Yue-Bin Zeng, Xing-Hua Liang, Guang-Xian Zhang, Nan Jiang, Tong Zhang, Jian-Ying Huang, Lei Zhang, Xian-Cheng Zeng
AIMS: Hepatocellular carcinoma (HCC) is the third leading cause of cancer mortality worldwide. Many microRNAs (miRNAs), small non-coding RNAs, are involved in regulating cancer cell proliferation, metastasis, migration, invasion and apoptosis. MAIN METHODS: We investigated the expression of miR-135a in HCC cell lines and clinical tissues. The effect of miR-135a on migration and invasion of HepG2 and MHCC-97L were examined using wound healing and Transwell assay...
2016: Cancer Cell International
Sanja Aveic, Gian Paolo Tonini
A growing field of evidence suggests the involvement of oncogenic receptor tyrosine kinases (RTKs) in the transformation of malignant cells. Constitutive and abnormal activation of RTKs may occur in tumors either through hyperactivation of mutated RTKs or via functional upregulation by RTK-coding gene amplification. In several types of cancer prognosis and therapeutic responses were found to be associated with deregulated activation of one or more RTKs. Therefore, targeting various RTKs remains a significant challenge in the treatment of patients with diverse malignancies...
2016: Cancer Cell International
Huifeng Wang, Bing Xu, Xiaoqian Zhang, Yabing Zheng, Yan Zhao, Xiaotian Chang
BACKGROUND: Peptidylarginine deiminase (PAD) post-translationally converts arginine residues to citrulline residues. Recent studies have suggested that PADI2 (PAD isoform 2), a member of the PAD family, is involved in the tumorigenic process of some tumors, especially breast cancer. However, little is known about the mechanisms of PADI2 in tumorigenesis. This study aimed to elucidate the tumorigenic role and regulatory pathway of PADI2 in breast tumors. METHODS: The Sequenom MassARRAY and TaqMan genotyping methods were used to investigate the correlation between PADI2 gene SNPs and various tumor risks...
2016: Cancer Cell International
Abraham A Embi
BACKGROUND: Seven decades ago, a seminal paper by Dr. Denham Harman in (J Gerontol 11(3):298-300, 1956), introduced a theory stating that there are good reasons for assuming that endogenous irradiation in the living cells could lead to cancer via an obscure mechanism. The main purpose of this manuscript is to shed some light in said mechanism by proposing a five-step eukaryotic cell cancer triggering cycle. In other words, a new factor is introduced, namely the recently found emissions of electromagnetic forces (EMFs) as a possible causing agent in diseases, including cancer...
2016: Cancer Cell International
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