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https://www.readbyqxmd.com/read/28454462/effects-of-irradiation-on-radioresistance-hotair-and-epithelial-mesenchymal-transition-cancer-stem-cell-marker-expression-in-esophageal-squamous-cell-carcinoma
#1
Chunli Da, Li Wu, Yuting Liu, Ruozheng Wang, Ruiguang Li
Radiotherapy is a common therapeutic strategy used to treat esophageal squamous cell carcinoma (ESCC). However, tumor cells often develop radioresistance, thereby reducing treatment efficacy. Here, we aimed to identify the mechanisms through which ESCC cells develop radioresistance and identify associated biomarkers. Eca109 cells were exposed to repeated radiation at 2 Gy/fraction for a total dose of 60 Gy (Eca109R60/2Gy cells). MTT and colony formation assays were performed to measure cell proliferation and compare the radiation biology parameters of Eca109 and Eca109R60/2Gy cells...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454449/bioinformatics-analysis-of-the-prognostic-value-of-tripartite-motif-28-in-breast-cancer
#2
Ling Hao, Jun Leng, Ruijing Xiao, Tembo Kingsley, Xinran Li, Zhenbo Tu, Xiangyong Yang, Xinzhou Deng, Meng Xiong, Jie Xiong, Qiuping Zhang
Tripartite motif containing 28 (TRIM28) is a transcriptional regulator acting as an essential corepressor for Krüppel-associated box zinc finger domain-containing proteins in multiple tissue and cell types. An increasing number of studies have investigated the function of TRIM28; however, its prognostic value in breast cancer (BC) remains unclear. In the present study, the expression of TRIM28 was identified to be significantly higher in cancerous compared with healthy tissue samples. Furthermore, it was demonstrated that TRIM28 expression was significantly correlated with several clinicopathological characteristics of patients with BC, such as p53 mutation, tumor recurrence and Elston grade of the tumor...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454440/ffj-3-inhibits-pkm2-protein-expression-via-the-pi3k-akt-signaling-pathway-and-activates-the-mitochondrial-apoptosis-signaling-pathway-in-human-cancer-cells
#3
Dengyun Li, Xiaoli Wei, Mingming Ma, Huina Jia, Yu Zhang, Wenyi Kang, Tianxiao Wang, Xiaoyan Shi
Pyruvate kinase isoenzyme M2 (PKM2) has previously been identified as a tumor biomarker and potential therapeutic target for the treatment of cancer. In the present study, FFJ-3, a structurally modified version of mollugin, an extract of the Traditional Chinese herbal medicine Rubia tinctorum (madder) was used in order to determine the anticancer activity of the compound and investigate the potential mechanisms underlying this effect in human cancer cells. The results of the present study revealed that FFJ-3 inhibited the survival of HepG2 human hepatoma cells, MCF-7 human breast cancer cells and A549 human lung adenocarcinoma cells using the MTT assay...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454437/polycomb-group-expression-signatures-in-the-malignant-progression-of-gliomas
#4
Qi Hu, Weining Wu, Ailiang Zeng, Tianfu Yu, Feng Shen, Er Nie, Yingyi Wang, Ning Liu, Junxia Zhang, Yongping You
Polycomb group (PcG) proteins form at least two key complexes, namely polycomb repressive complex 1 and polycomb repressive complex 2. These complexes are involved in the progression of various cancers. Systematic research has not been conducted on the aberrant expression of PcG members in gliomas. Using the Chinese Glioma Genome Atlas data set, PcG expression patterns between normal brain tissues and glioma samples were analyzed, and a PcG-based classifier was then developed using BRB Cox regression and risk-score model...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454432/prognostic-and-predictive-role-of-cox-2-xrcc1-and-rassf1-expression-in-patients-with-esophageal-squamous-cell-carcinoma-receiving-radiotherapy
#5
Yaowen Zhang, Shangwen Dong, Ruiping Xu, Yanping Yang, Zhiyong Zheng, Xiaojing Wang, Runchuan Ren, Ronggang Sun, Ming Li, Haijun Yang, Yuting Huang, Fuyou Zhou, Anping Zheng
Identification of biomarkers for predicting radiosensitivity would be useful for administering individualized radiotherapy (RT) to patients with esophageal cancer. The aim of the present study was to evaluate the association between cyclooxygenase-2 (COX-2), X-ray repair cross complementing group 1 (XRCC1), ras association domain family 1 (RASSF1) protein expression, clinicopathological characteristics, radiosensitivity and survival rate in 76 patients with esophageal squamous cell carcinoma (ESCC) who were treated with RT...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454430/wt1-associated-protein-is-a-novel-prognostic-factor-in-pancreatic-ductal-adenocarcinoma
#6
Bing-Qi Li, Shuai Huang, Qian-Qian Shao, Jian Sun, Li Zhou, Lei You, Tai-Ping Zhang, Quan Liao, Jun-Chao Guo, Yu-Pei Zhao
Although Wilms tumor 1 (WT1)-associated protein (WTAP) was initially found to be a specific WT1-binding protein, it has increasingly attracted attention because of its oncogenic role in various types of malignancies, including cholangiocarcinoma, glioblastoma and acute myeloid leukemia. However, the clinical impact of WTAP on pancreatic ductal adenocarcinoma (PDAC) is still unknown. A total of 145 patients who underwent surgical treatment from 2004 to 2008 were enrolled in the present study. The cytoplasmic and nuclear expression of WTAP in tumor and adjacent normal tissues was examined by immunohistochemical analysis in order to investigate the relationship between WTAP and the clinicopathological factors and prognosis of patients with PDAC...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454423/the-nutritional-herb-epimedium-grandiflorum-inhibits-the-growth-in-a-model-for-the-luminal-a-molecular-subtype-of-breast-cancer
#7
Nitin T Telang, Gou Li, Meena Katdare, Daniel W Sepkovic, H Leon Bradlow, George Y C Wong
The Luminal A subtype of breast cancer expresses the estrogen receptor (ER)-α and progesterone receptor (PR), but not the human epidermal growth factor receptor (HER)-2 oncogene. This subtype of breast cancer responds to endocrine therapy involving the use of selective estrogen receptor modulators and/or inhibitors of estrogen biosynthesis. However, these therapeutic agents are frequently associated with long-term systemic toxicity and acquired tumor resistance, emphasizing the need to identify non-toxic alternative treatments for chemo-endocrine therapy responsive breast cancer...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454418/epigenetic-silencing-of-protocadherin-10-in-colorectal-cancer
#8
Xian Zhong, Hong Shen, Jianshan Mao, Jiawei Zhang, Weidong Han
Colorectal cancer (CRC) is one of the most common types of malignant tumor in the world and occurs through a multi-step process resulting from the accumulation of genetic and epigenetic alterations of the genome. Although the molecular mechanisms of the pathogenesis of CRC remain unclear, the inactivation of tumor suppressor genes (TSGs) through promoter methylation serves an important role. Aberrant methylation is a well-defined marker of CRC. At present, the epigenetic silencing of protocadherin 10 (PCDH10) has been identified as an important TSG with key roles in colorectal carcinogenesis, invasion and metastasis as a frequent and early event...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454416/survivin-dex3-as-a-biomarker-of-thyroid-cancers-a-study-at-the-mrna-and-protein-level
#9
Joanna Waligórska-Stachura, Nadia Sawicka-Gutaj, Maciej Zabel, Mirosław Andrusiewicz, Paweł Gut, Agata Czarnywojtek, Marek Ruchała
Survivin and its splice variants DEx3 and 2B are involved in pathogenesis of numerous types of cancer. Proliferating cell nuclear antigen (PCNA) level correlates with cellular proliferation. The present study aimed to analyze the potential utility of survivin and its splice variants DEx3 and 2B as biomarkers for thyroid cancer. PCNA, survivin and its splice variants DEx3 and 2B expressions were analyzed in 22 tissue samples (15 thyroid cancers and 7 benign lesions) by reverse transcription-quantitative polymerase chain reaction and immunohistochemistry (IHC)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454397/sphingosine-kinase-1-a-novel-independent-prognosis-biomarker-in-hepatocellular-carcinoma
#10
Huajie Cai, Xuemeng Xie, Ling Ji, Xiaojiao Ruan, Zhihai Zheng
Sphingosine kinase 1 (Sphk1) is an oncogenic kinase that is responsible for the phosphorylation of sphingosine to sphingosine-1-phosphate (S1P). Mounting evidence suggests that Sphk1 serves a crucial role in the proliferation and development of a variety of human cancer cells. However, the role of Sphk1 in hepatocellular carcinoma (HCC) has not been fully elucidated. Therefore, the expression of Sphk1 was examined in 127 formalin-fixed, paraffin-embedded HCC tissues using immunohistochemistry, and its clinical implications and prognostic significance were analyzed...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454391/upregulation-of-kin17-is-associated-with-non-small-cell-lung-cancer-invasiveness
#11
Yuzhao Zhang, Senlin Huang, Hongyi Gao, Kunhe Wu, Xiaoming Ouyang, Zheng Zhu, Xiaobin Yu, Tao Zeng
Kin17 DNA and RNA binding protein (Kin17) is a highly conserved protein that participates in DNA replication, DNA repair and cell cycle progression. Recently, the tumor-promoting function of Kin17 has been demonstrated and increasingly studied. In the present study, the role of Kin17 in the invasion and metastasis of non-small cells lung cancer (NSCLC) was investigated. Elevated Kin17 mRNA and protein expression was identified in a total of 97 NSCLC and benign lung lesion tissue specimens. Kin17 overexpression was significantly correlated with high tumor grade and lymph node metastasis, indicating poor patient prognosis...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454387/association-between-wnt-inhibitory-factor-1-and-receptor-tyrosine-kinase-like-orphan-receptor-2-protein-expression-and-the-clinical-pathological-significance-in-benign-and-malignant-pancreatic-lesions
#12
Daoqi Zhu, Zhulin Yang, Ziru Liu, Qiong Zou, Yuan Yuan, Chunhong Hu
Pancreatic cancer is one of the most malignant types of tumor. It is important to elucidate the underlying molecular mechanisms of pancreatic tumorigenesis and to identify novel biomarkers as therapeutic targets of pancreatic cancer. In the present study, the protein expression levels of Wnt inhibitory factor 1 (WIF1) and receptor tyrosine kinase-like orphan receptor 2 (ROR2) were examined in a collection of pancreatic ductal carcinoma and benign pancreatic lesion tissue samples using immunohistochemistry. The positive expression rate of WIF1 protein in pancreatic ductal carcinoma was demonstrated to be significantly decreased compared with that of the paracancerous tissue, benign lesions and wild-type pancreatic tissue (P=0...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454353/prmt8-demonstrates-variant-specific-expression-in-cancer-cells-and-correlates-with-patient-survival-in-breast-ovarian-and-gastric-cancer
#13
Sarah J Hernandez, David M Dolivo, Tanja Dominko
Recent emphasis has been placed on the role of epigenetic regulators and epigenetic marks as biomarkers for cancer diagnosis and prognosis, and as therapeutic targets for treatment. One such class of regulators is the protein arginine methyltransferase (PRMT) family. The present study examined available curated data regarding the expression and alteration of one of the least studied PRMT family members, PRMT8, in various types of cancer and cancer cell lines. Publicly available cancer data on PRMT8 expression were examined using the Human Protein Atlas and the Kaplan-Meier Plotter, and reverse transcription-polymerase chain reaction was used to screen a selection of human cell lines for variant-specific PRMT8 expression...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454346/microrna-134-targets-kras-to-suppress-breast-cancer-cell-proliferation-migration-and-invasion
#14
Xiaomei Su, Ling Zhang, Hua Li, Peng Cheng, Yajie Zhu, Zhen Liu, Yu Zhao, Hongyu Xu, Dong Li, Hui Gao, Tao Zhang
The expression patterns and functions of microRNA-134 (miR-134) have been previously studied in numerous types of cancer. To the best of our knowledge, this is the first study of miR-134 in human breast cancer. In the present study, the expression patterns, biological functions and underlying molecular mechanisms of miR-134 in human breast cancer were investigated. Reverse transcription-quantitative polymerase chain reaction evaluated the expression of miR-134 in human breast cancer tissues, matched normal adjacent tissues, breast cancer cell lines and a normal mammary epithelial cell line...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454336/promoter-methylation-and-expression-of-raf-kinase-inhibitory-protein-in-esophageal-squamous-cell-carcinoma
#15
Hong Wei, Zhijun Liu, Hongyan She, Baoguo Liu, Junxia Gu, Dongmin Wei, Xiangyang Zhang, Jiufeng Wang, Shujing Qi, Fumin Ping
Raf kinase inhibitory protein (RKIP) regulates multiple cellular processes, and its downregulation is associated with distinct human cancers. In the present study, the status of RKIP promoter methylation, as well as its expression and clinical significance in esophageal squamous cell carcinoma (ESCC), were examined. The promoter methylation status in the 5'-CpG island of the RKIP gene and the expression level of the RKIP protein were examined using a modified methylation-specific polymerase chain reaction (MSP) method and immunohistochemical staining, respectively, in 77 ESCC samples and matched paratumor normal tissues...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454335/effect-of-laser-therapy-on-plasma-expression-of-vegf-and-bfgf-in-infants-with-cutaneous-hemangioma
#16
Fagang Wang, Rongjian Xu, Qian Xu, Yongqian Cao, Li Lin, Wei Dang
The present study aimed to investigate the effect of laser therapy on the expression of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in the plasma of infants diagnosed with cutaneous hemangioma, in order to identify biomarkers for assessing the clinical efficacy of laser therapy. In total, 109 infants with superficial abdominal hemangioma received laser treatment, of which 74 were diagnosed in the proliferation phase, 20 in the regression phase and 15 in the involution phase...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454330/high-bim-mrna-levels-are-associated-with-longer-survival-in-advanced-gastric-cancer
#17
Nandie Wu, Ying Huang, Zhengyun Zou, Ana Gimenez-Capitan, Lixia Yu, Wenjing Hu, Lijing Zhu, Xia Sun, Jose Javier Sanchez, Wenxian Guan, Baorui Liu, Rafael Rosell, Jia Wei
Chemotherapy drugs, including 5-fluorouracil (5-FU), oxaliplatin and docetaxel, are commonly used in the treatment of gastric cancer (GC). Apoptosis-relevant genes may be associated with drug resistance. In the present study, the messenger RNA (mRNA) expression levels of B-cell lymphoma 2 interacting mediator of cell death (BIM), astrocyte elevated gene-1 (AEG-1) and AXL receptor tyrosine kinase (AXL) were investigated in 131 advanced GC samples, and the expression levels of these genes were correlated with patients' overall survival (OS)...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454321/the-loss-of-casp4-expression-is-associated-with-poor-prognosis-in-esophageal-squamous-cell-carcinoma
#18
Misako Shibamoto, Hidenari Hirata, Hidetoshi Eguchi, Genta Sawada, Noritaka Sakai, Yoshiaki Kajiyama, Koshi Mimori
Esophageal squamous cell carcinoma (ESCC) has high biological malignant potential among the various digestive tract cancers and is associated with a poor prognosis. To identify novel genes involved in tumor progression, the present study analyzed the genetic and transcriptional alterations in two clinical cohorts, totaling 157 cases of ESCC (78 cases from the discovery set and 79 cases from the validation set). From the discovery set, gene expression and copy number profiles were analyzed using expression arrays and array-comparative genomic hybridization, respectively...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454316/overexpression-of-n-cadherin-and-%C3%AE-catenin-correlates-with-poor-prognosis-in-patients-with-nasopharyngeal-carcinoma
#19
Hong Sun, Mingyu Liu, Xuewen Wu, Chunguang Yang, Yanni Zhang, Zhenhang Xu, Kelei Gao, Fengjun Wang
An increasing amount of evidence demonstrates that epithelial-mesenchymal transition (EMT) is important in tumor invasion and metastases. The cell-cell adhesion molecule N-cadherin and the Wnt/β-catenin cascade protein β-catenin are two biomarkers of EMT. The present study aimed to measure the expression levels of N-cadherin and β-catenin in samples from patients with nasopharyngeal carcinoma (NPC) and evaluate their prognostic significance. N-cadherin and β-catenin mRNA was evaluated using reverse transcription-quantitative polymerase chain reaction in 26 NPC tissue samples and 8 nasopharyngeal epithelium samples...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454310/downregulation-of-lkb1-promotes-tumor-progression-and-predicts-unfavorable-prognosis-in-patients-with-glioma
#20
Jiehao Huang, Hongwu Chen, Quantang Wei, Ziheng Zhang, Zhiwei Zhong, Yimin Xu
The liver kinase B1 (LKB1)/5'-adenosine monophosphate-activated protein kinase pathway has been reported to facilitate glioma cell growth by improving growth conditions. To investigate the clinical significance of LKB1 in human gliomas western blot analysis and quantitative polymerase chain reaction experiments were performed. The present study demonstrated that LKB1 expression was markedly decreased at the messenger RNA and protein levels in 30 freshly prepared glioma tissues, compared with non-neoplastic brain tissues (P<0...
March 2017: Oncology Letters
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