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International Journal of Oncology

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https://www.readbyqxmd.com/read/27909716/aberrant-timeless-expression-is-associated-with-poor-clinical-survival-and-lymph-node-metastasis-in-early-stage-cervical-carcinoma
#1
Weijing Zhang, Weiling He, Yongjie Shi, Jing Zhao, Sailan Liu, Fengxiang Zhang, Jiarui Yang, Chuanmiao Xie, Yanna Zhang
TIMELESS is a highly conserved protein required for the maintenance of normal mammalian circadian oscillations and for controlling cellular metabolism and proliferation. Recently, TIMELESS was implicated in the tumorigenesis of certain cancers. However, little is known on TIMELESS protein expression and its potential as a prognostic factor in cervical cancer. Here, we investigate TIMELESS expression pattern and its clinicopathological significance in early-stage cervical carcinoma. TIMELESS mRNA and protein expression was evaluated by real-time PCR and western blot analysis in cervical cancer cell lines, a normal cervical cell line, as well as in six pairs of surgically removed cervical cancer and adjacent normal cervical tissues...
November 29, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27909719/the-expression-and-function-of-epithelial-membrane-protein-1-in-laryngeal-carcinoma
#2
Hong Li, Xiaowen Zhang, Xuejun Jiang, Xu Ji
In this study, we compared the expression of epithelial membrane protein 1 (EMP1) on the steady-state mRNA level (by quantitative real-time PCR) and on the protein level (by western immunoblot and immunohistochemistry) in 51 pairs of laryngeal carcinoma tissues and matched cancer-free peritumor tissues, and we analyzed the correlation between EMP1 expression and different clinicopathological factors. Furthermore, we ectopically expressed EMP1 in human laryngeal carcinoma Hep-2 cells and examined the effects on cell viability, apoptosis, colonogenicity, and motility, by MTT assay, flow cytometry, colony formation assay and Transwell migration assay, respectively...
November 28, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27909714/inhibition-of-cdh17-gene-expression-via-rna-interference-reduces-proliferation-and-apoptosis-of-human-mkn28-gastric-cancer-cells
#3
Rui Li, Hong-Qiang Yang, Hai-Lin Xi, Su Feng, Rui-Hao Qin
Gastric cancer is the fourth most common type of cancer and the second cause of cancer‑related mortalities worldwide despite the use of multimodal therapy. Cadherins are transmembrane glycoproteins that are involved in tumorigenesis. CDH17 has been found to be over‑expressed in gastric cancer and its overexpression was associated with lymph node metastasis and tumor‑node‑metastasis stage of the patients, yet the exact role and molecular mechanism of CDH17 in gastric cancer have not been determined. Using a lentiviral system as a delivery mediator of RNA interference, we found that inhibition of CDH17 can lead to reduce proliferation and increase apoptosis of gastric cancer cell line MKN28 in vitro and significantly diminish their tumorigenicity in vivo...
November 28, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27909718/enzalutamide-inhibits-proliferation-of-gemcitabine-resistant-bladder-cancer-cells-with-increased-androgen-receptor-expression
#4
Koji Kameyama, Kengo Horie, Kosuke Mizutani, Taku Kato, Yasunori Fujita, Kyojiro Kawakami, Toshio Kojima, Tatsuhiko Miyazaki, Takashi Deguchi, Masafumi Ito
Advanced bladder cancer is treated mainly with gemcitabine and cisplatin, but most patients eventually become resistance. Androgen receptor (AR) signaling has been implicated in bladder cancer as well as other types of cancer including prostate cancer. In this study, we investigated the expression and role of AR in gemcitabine-resistant bladder cancer cells and also the potential of enzalutamide, an AR inhibitor, as a therapeutic for the chemoresistance. First of all, we established gemcitabine-resistant T24 cells (T24GR) from T24 bladder cancer cells and performed gene expression profiling...
November 24, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27909720/tetrandrine-inhibits-glioma-stem-like-cells-by-repressing-%C3%AE-catenin-expression
#5
Yong Zhang, Yu-Lin Wen, Ji-Wei Ma, Jie-Cheng Ye, Xiao Wang, Jian-Xian Huang, Chao-Yue Meng, Xiao-Ze Xu, Shao-Xiang Wang, Xue-Yun Zhong
Cancer stem cells (CSCs) in glioma are often responsible for relapse and resistance to therapy. The purpose of the present study was to confirm the self-renewal and migration inhibitory effects of tetrandrine (Tet), which is a compound extracted from the dried root of Stephania tetrandra S. Moore, toward glioma stem-like cells (GSLCs) and to examine the associated molecular mechanisms. Using a neurosphere culture technique, we enriched the GSLC population from the human glioblastoma cell lines U87 and U251...
November 23, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878293/stathmin1-overexpression-in-hypopharyngeal-squamous-cell-carcinoma-a-new-promoter-in-fadu-cell-proliferation-and-migration
#6
Yan Chen, Qicheng Zhang, Chuanjin Ding, Xiaobo Zhang, Xiaoxia Qiu, Zhenxin Zhang
Stathmin1, a microtubule-destabilizing phosphoprotein, is considered to play a crucial role in regulating cellular microtubule dynamics and controlling mitosis. Previous studies have showed that STMN1 is highly expressed in many human malignancies and is related to development, invasion and metastasis of tumors. However, its expression pattern, clinical performance and functional roles in hypopharyngeal squamous cell carcinoma (HSCC) have not been addressed. In this study, we found that STMN1 was significantly elevated in HSCC and its expression level was correlated with poor differentiation (P<0...
November 23, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878234/prometastatic-mechanisms-of-caf-mediated-emt-regulation-in-pancreatic-cancer-cells
#7
Tao Shan, Shuo Chen, Xi Chen, Wan Run Lin, Wei Li, Jiancang Ma, Tao Wu, Hong Ji, Yiming Li, Xijuan Cui, Ya'an Kang
Tumor metastasis are accompanied by the EMT (epithelial-mesenchymal transition)-MET (mesenchymal-epithelial transition) two-step process. In this study, we investigated the importance of cancer associated fibroblasts (CAF) in the process. First, the primary cultures of isolated pancreatic CAF, fibroblasts of normal pancreatic tissues (NF), and normal hepatic stellate cells (HSF) were identified and verified via the expression of α-SMA and vimentin. Using an indirect three-dimensional co-culture model, the morphological changes were observed by light microscopy and laser scanning confocal microscopy...
November 23, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878232/involvement-of-bleomycin-hydrolase-and-poly-adp-ribose-polymerase-1-in-ubc9-mediated-resistance-to-chemotherapy-agents
#8
Yang Chen, Huixian Zhang, Qiyang He
Ubiquitin-conjugating protein 9 (Ubc9), the sole enzyme for sumoylation, plays critical roles in many physiological functions, such as DNA damage repair and genome integrity. Its overexpression led to poor prognosis and drug resistance in tumor chemotherapy. However, the underlying mechanism by which Ubc9 promotes tumor progress and influences the susceptibility to antitumor agents remains elusive. In this study, we used nine antitumor agents with distinct actions to explore Ubc9-mediated resistance in human breast carcinoma MCF-7 cells...
November 23, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878235/accelerated-cell-cycle-progression-of-human-regulatory-t%C3%A2-cell-like-cell-line-caused-by-continuous-exposure-to-asbestos-fibers
#9
Suni Lee, Hidenori Matsuzaki, Megumi Maeda, Shoko Yamamoto, Naoko Kumagai-Takei, Tamayo Hatayama, Miho Ikeda, Kei Yoshitome, Yasumitsu Nishimura, Takemi Otsuki
Asbestos exposure causes malignant tumors such as lung cancer and malignant mesothelioma. Based on our hypothesis in which continuous exposure to asbestos of immune cells cause reduction of antitumor immunity, the decrease of natural killer cell killing activity with reduction of NKp46 activating receptor expression, inhibition of cytotoxic T cell clonal expansion, reduced CXCR3 chemokine receptor expression and production of interferon-γ production in CD4+ T cells were reported using cell line models, freshly isolated peripheral blood immune cells from health donors as well as asbestos exposed patients such as pleural plaque and mesothelioma...
November 22, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878239/aicar-induces-mitochondrial-apoptosis-in-human-osteosarcoma-cells-through-an-ampk-dependent-pathway
#10
Masayuki Morishita, Teruya Kawamoto, Hitomi Hara, Yasuo Onishi, Takeshi Ueha, Masaya Minoda, Etsuko Katayama, Toshiyuki Takemori, Naomasa Fukase, Masahiro Kurosaka, Ryosuke Kuroda, Toshihiro Akisue
The AMP-activated protein kinase (AMPK) activator 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR) modulates cellular energy metabolism, and promotes mitochondrial proliferation and apoptosis. Previous studies have shown that AICAR has anticancer effects in various cancers, however the roles of AMPK and/or the effects of AICAR on osteosarcoma have not been reported. In the present study, we evaluated the effects of AICAR on tumor growth and mitochondrial apoptosis in human osteosarcoma both in vitro and in vivo...
November 21, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878251/glyceraldehyde-3-phosphate-dehydrogenase-promotes-cancer-growth-and-metastasis-through-upregulation-of-snail-expression
#11
Kaiyan Liu, Zhenjie Tang, Amin Huang, Ping Chen, Panpan Liu, Jing Yang, Wenhua Lu, Jianwei Liao, Yicheng Sun, Shijun Wen, Yumin Hu, Peng Huang
Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) plays an important role in multiple cellular functions including metabolism and gene transcription. Our previous study showed that GAPDH expression was elevated in colon cancer and further upregulated in liver metastatic tissues, suggesting a possilbe role of GAPDH in promoting cancer metastasis. The present study was designed to investigate the underlying mechanism, using multiple experimental approaches including genetic silencing of GAPDH expression by short hairpin RNA (shRNA) and biochemcial/molecular analyses of the key events involved in glycolytic metabolism and epithelial-mesenchymal transition (EMT)...
November 18, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878247/oridonin-inhibition-and-mir%C3%A2-200b%C3%A2-3p-zeb1-axis-in-human-pancreatic-cancer
#12
Zhifang Gui, Feng Luo, Yayang Yang, Can Shen, Shuquan Li, Jian Xu
The relationship among oridonin, miR-200b-3p and pancreatic cancer on epithelial-to-mesenchymal transition (EMT) was investigated for the molecular mechanism or signaling pathways on the migration in pancreatic cancer. BxPC-3 and PANC-1 cells were cultivated and the IC50 of oridonin in BxPC-3 and PANC-1 cells were obtained by the CCK-8 array. The expression of miR‑200b-3p was verified by using real-time PCR and its target gene was predicted. BxPC-3 and PANC-1 cells were treated with oridonin or transfected by miR-200b-3p, those cells were used for western blot assay, Transwell assay, ELISA, immunofluorescence staining, tumorigenesis assay in nude mice and immunohistochemical assay to verify the effects of oridonin or miR-200b-3p on pancreatic cancer...
November 18, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878243/different-functions-of-akt1-and-akt2-in-molecular-pathways-cell-migration-and-metabolism-in-colon-cancer-cells
#13
Sara Häggblad Sahlberg, Anja C Mortensen, Jakob Haglöf, Mikael K R Engskog, Torbjörn Arvidsson, Curt Pettersson, Bengt Glimelius, Bo Stenerlöw, Marika Nestor
AKT is a central protein in many cellular pathways such as cell survival, proliferation, glucose uptake, metabolism, angiogenesis, as well as radiation and drug response. The three isoforms of AKT (AKT1, AKT2 and AKT3) are proposed to have different physiological functions, properties and expression patterns in a cell type-dependent manner. As of yet, not much is known about the influence of the different AKT isoforms in the genome and their effects in the metabolism of colorectal cancer cells. In the present study, DLD-1 isogenic AKT1, AKT2 and AKT1/2 knockout colon cancer cell lines were used as a model system in conjunction with the parental cell line in order to further elucidate the differences between the AKT isoforms and how they are involved in various cellular pathways...
November 18, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878242/esc-3-induces-apoptosis-of-human-ovarian-carcinomas-through-wnt-%C3%AE-catenin-and-notch-signaling-in-vitro-and-in-vivo
#14
Qi-Rui Fu, Wei Song, Yi-Tao Deng, Hua-Liang Li, Xiao-Mei Mao, Chen-Lu Lin, Ya-Hui Zheng, Shu-Ming Chen, Qiong-Hua Chen, Qing-Xi Chen
Apoptosis, programmed cell death under physiological or pathological conditions, plays a critical role in the tissue homeostasis of eukaryotes. It is desirable to prevent the occurrence and metastasis of cancer through inducing apoptosis. Our previous study demonstrated that apoptosis could be induced by extract from crocodile in human cholangiocarcinoma. ESC-3, a novel cytotoxic compound isolated from the extract induced apoptosis in Mz-ChA-1 cells via the mitochondria-dependent pathway in a dose-dependent manner...
November 18, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878249/ets-1-a-potential-target-of-glycolysis-for-metabolic-therapy-by-regulating-glucose-metabolism-in-pancreatic-cancer
#15
Xiu Zhang, Dan Wu, Mohanad Aldarouish, Xiaodong Yin, Chunyan Li, Cailian Wang
Pancreatic cancer is one of the most lethal malignancies of all types of cancer due to lack of early symptoms and its resistance to conventional therapy. In our previous study, we have shown that v‑ets erythroblastosis virus E26 oncogene homolog‑1 (ETS‑1) promote cell migration and invasion in pancreatic cancer cells. However, the function of ETS‑1 in regulation of glycolysis and autophagy during progression of pancreatic cancer has not been defined yet. In this study, we sought to identify the potential role for silencing ETS‑1 in reducing the expression of glucose transporter‑1 (GLUT‑1) to disturb glycolysis through alteration of 'Warburg effect', by which could result in AMP‑activated protein kinase (AMPK) activation, autophagy induction and reduction of cell viability...
November 16, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878253/development-of-a-therapeutic-model-of-precancerous-liver-using-crocin-coated-magnetite-nanoparticles
#16
Rkia El-Kharrag, Amr Amin, Soleiman Hisaindee, Yaser Greish, Sherif M Karam
Despite considerable advances in understanding hepatocellular carcinoma, it is one of the common and deadliest cancers worldwide. Hence, increasing efforts are needed for early diagnosis and effective treatments. Saffron has been recently found to inhibit growth of liver cancer in rats. The aim of this study was to develop an effective method for treatment of liver cancer using magnetite nanoparticles (MNPs) coated with crocin, the main active component of saffron. MNPs were prepared and initially coated with dextran and a cross-linker to enhance conjugation of crocin using a modified coprecipitation method...
November 15, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27878245/baicalin-attenuates-ddp-cisplatin-resistance-in-lung-cancer-by-downregulating-mark2-and-p-akt
#17
Zhiwei Xu, Ju Mei, Yan Tan
DDP (cisplatin) resistance in lung cancer has been widely reported. Baicalin is a flavone glycoside found in genus Scutellaria. However, the effects of baicalin on DDP resistance in lung cancer are unclear. The aim of present study was to investigate effects of combination of baicalin and DDP on proliferation and invasion of human lung cancer cells, and explore possible mechanisms. MTT assay was utilized to evaluate effects of baicalin and DDP on the proliferation of A549 and A549/DPP (DPP-resistant) human lung cancer cells...
November 15, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27840913/sororin-and-plk1-as-potential-therapeutic-targets-in-malignant-pleural-mesothelioma
#18
Tatsuya Kato, Daiyoon Lee, Licun Wu, Priya Patel, Ahn Jin Young, Hironobu Wada, Hsin-Pei Hu, Hideki Ujiie, Mitsuhito Kaji, Satoshi Kano, Shinichi Matsuge, Hiromitsu Domen, Hiromi Kanno, Yutaka Hatanaka, Kanako C Hatanaka, Kichizo Kaga, Yoshiro Matsui, Yoshihiro Matsuno, Marc De Perrot, Kazuhiro Yasufuku
Malignant pleural mesothelioma (MPM) is an aggressive type of cancer of the thoracic cavity commonly associated with asbestos exposure and a high mortality rate. There is a need for new molecular targets for the development of more effective therapies for MPM. Using quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR) and an RNA interference-based screening, we examined the SORORIN gene as potential therapeutic targets for MPM in addition to the PLK1 gene, which is known for kinase of SORORIN...
November 10, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27840909/sirtuin-3-a-janus-face-in-cancer-review
#19
Yanlu Xiong, Mingxing Wang, Jinbo Zhao, Yong Han, Lintao Jia
The NAD-dependent protein deacetylase sirtuin 3 (SIRT3) is an enzyme localized primarily in the mitochondrion, where it modulates cellular functions such as nutrient metabolism, ATP balance, antioxidant machinery, and other mechanisms fundamental to mitochondria. SIRT3 is closely associated with the pathogenesis of diverse disorders. In particular, it plays a dual role in the development and progression of cancer. In many cancers, SIRT3 acts as an oncogene by promoting or maintaining the malignant phenotypes of neoplastic cells, including uncontrolled proliferation, resistance to apoptosis, and increased motility or invasiveness; however, SIRT3 suppresses these phenotypes in certain types of malignancy...
November 10, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27840908/hoxc6-regulates-the-antitumor-effects-of-pheophorbide-a-based-photodynamic-therapy-in-multidrug-resistant-oral-cancer-cells
#20
Soo-A Kim, Mi Rha Lee, Jung-Hoon Yoon, Sang-Gun Ahn
Photodynamic therapy (PDT) has been considered to be a possible candidate approach for the treatment of multidrug-resistant (MDR) cancer. To investigate the photocytotoxicity of pheophorbide a-based PDT on MDR cells, the intracellular pathways were studied using the human oral cancer FaDu cell line and its paclitaxel-selected subline FaDu-PTX. Pheophorbide a (Pa)-PDT induced significant photocytotoxicity in both FaDu and FaDu-PTX cell lines with cell apoptosis greater in FaDu cells compared to FaDu-PTX cells...
November 10, 2016: International Journal of Oncology
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