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https://www.readbyqxmd.com/read/28454466/identification-of-molecular-characteristics-induced-by-radiotherapy-in-rectal-cancer-based-on-microarray-data
#1
Chang Ge, Mengxia Wu, Guifang Chen, Guanying Yu, Dehui Ji, Shaozhao Wang
The present study aimed to reveal the molecular characteristics induced by radiotherapy in rectal cancer at the transcriptome level. Microarray data (ID, GSE26027) downloaded from the Gene Expression Omnibus database were re-analyzed to identify differentially expressed genes (DEGs) between rectal cancer tissues during and prior to radiotherapy. The DEGs were then inputted into the database for annotation, visualization and integrated discovery, an online tool to perform enrichment analyses, and into the search tool for the retrieval of interacting genes/proteins database to identify protein-protein interactions (PPIs)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454460/melatonin-treatment-induces-apoptosis-through-regulating-the-nuclear-factor-%C3%AE%C2%BAb-and-mitogen-activated-protein-kinase-signaling-pathways-in-human-gastric-cancer-sgc7901-cells
#2
Weimin Li, Zhonglue Wang, Yina Chen, Kaijing Wang, Ting Lu, Fei Ying, Mengdi Fan, Zhiyin Li, Jiansheng Wu
Melatonin, which is synthesized by the pineal gland and released into the blood, exhibits antitumor properties. However, the mechanisms underlying these effects, particularly in stomach cancer, remain unknown. In the present study, the effect of melatonin on the nuclear factor (NF)-κB signaling pathway and the mitogen-activated protein kinase signaling pathway, involving p38 and c-Jun-N-terminal kinase (JNK), were investigated in SGC7901 gastric cancer cells. In addition, the effect of melatonin on the survival, migration and apoptosis of these cells was investigated in vitro in order to evaluate the use of melatonin for the treatment of gastric cancer...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454454/chemotherapy-regimen-based-on-sorafenib-combined-with-5-fu-on-hif-1%C3%AE-and-vegf-expression-and-survival-in-advanced-gastric-cancer-patients
#3
Ronghui Cheng, Hongmei Yong, Yunhong Xia, Qingsong Xie, Guangyi Gao, Xueyi Zhou
The present study investigated the effect of combined sorafenib chemotherapy on hypoxia-inducible factor-1α (HIF-1α) and vascular endothelial growth factor (VEGF) expression and survival time of patients with advanced gastric cancer. From January 2010 to December 2011, 92 patients diagnosed with advanced gastric cancer were selected and randomly divided into the treatment group and control group. The treatment group was treated with sorafenib chemotherapy combined with 5-fluorouracil (5-FU), and the control group received 5-FU...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454442/identification-of-target-genes-of-cediranib-in-alveolar-soft-part-sarcoma-using-a-gene-microarray
#4
Wenhua Jiang, Pengfei Liu, Xiaodong Li, Ping Wang
The aim of the present study was to identify the target genes of cediranib and the associated signaling pathways in alveolar soft part sarcoma (ASPS). A microarray dataset (GSE32569) was obtained from the Gene Expression Omnibus database. The R software package was used for data normalization and screening of differentially expressed genes (DEGs). The Database for Annotation, Visualization and Integrated Discovery was used to perform Gene Ontology analysis. Gene Set Enrichment Analysis was performed to obtain the up- and downregulated pathways in ASPS...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454433/deregulation-of-mir-193b-affects-the-growth-of-colon-cancer-cells-via-transforming-growth-factor-%C3%AE-and-regulation-of-the-smad3-pathway
#5
Kaiming Wu, Zhenxian Zhao, Jun Ma, Jianhui Chen, Jianjun Peng, Shibin Yang, Yulong He
MicroRNA-193b (miRNA-193b) is often differentially expressed and is an important regulator of gene expression in colon cancer. The aim of the present study was to determine whether miRNA-193b affects cell growth in colon cancer and to investigate the potential underlying mechanisms. Patients with colorectal cancer (CRC; n=20) and healthy volunteers (n=10) were enrolled from the Department of Gastrointestinal Surgery Center, First Affiliated Hospital of Sun Yat-Sen University (Guangzhou, China). Western blot analysis was used to evaluate the protein expression of SMAD3 and transforming growth factor-β (TGF-β) in the patient samples...
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
#6
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/28454414/analysis-of-egfr-mutation-status-in-tissue-and-plasma-for-predicting-response-to-egfr-tkis-in-advanced-non-small-cell-lung-cancer
#7
Yuyan Wang, Jianchun Duan, Hanxiao Chen, Hua Bai, Tongtong An, Jun Zhao, Zhijie Wang, Minglei Zhuo, Shuhang Wang, Jie Wang
The detection of mutations in the epidermal growth factor receptor (EGFR) gene in tumor tissues has been established as the gold standard for predicting the efficacy of treatment with EGFR-tyrosine kinase inhibitors (EGFR-TKIs) in advanced non-small-cell lung cancer (NSCLC). The current study aimed to investigate whether the presence of co-existing EGFR mutations in tumor tissue and in cell-free tumor DNA (ctDNA) in the plasma predicts a more favorable outcome of EGFR-TKI treatment in advanced NSCLC. A total of 287 NSCLC patients who had undergone EGFR-TKI treatment were enrolled and stratified into four subgroups: Wild-type EGFR in plasma and tissue specimens (B-/T-); mutated EGFR in plasma and tissue specimens (B+/T+); mutated EGFR in only in plasma samples (B+/T-); or mutated EGFR in only tissue specimens (B-/T+)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454409/expression-of-imp3-as-a-marker-for-predicting-poor-outcome-in-gastroenteropancreatic-neuroendocrine-neoplasms
#8
Li-Mian Er, Yong Li, Ming-Li Wu, Qun Zhao, Bi-Bo Tan, Xiao-Ling Wang, Shi-Jie Wang
The aim of the present study was to investigate the expression and clinical significance of oncofetal protein insulin-like growth factor (IGF) II mRNA-binding protein 3 (IMP3) in the differentiation of gastroenteropancreatic neuroendocrine neoplasm (GEP-NEN). A total of 162 patients who were diagnosed with GEP-NEN, and who underwent surgical or endoscopic resection from January 2006 to March 2013, were enrolled in the study, including 85 cases of grade (G)1 neuroendocrine tumors, 40 cases of G2 neuroendocrine tumors, 28 cases of G3 neuroendocrine carcinomas and 9 cases of mixed stage adenoneuroendocrine carcinomas...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454407/downregulation-of-npm-expression-by-her-2-reduces-resistance-of-gastric-cancer-to-oxaliplatin
#9
Zhenni Sun, Lu Yue, Zan Shen, Yong Li, Aihua Sui, Tianjun Li, Qian Tang, Ruyong Yao, Yongning Sun
Nucleophosmin (NPM) and human epidermal growth factor receptor-2 (Her-2) are abnormally expressed in various types of human malignant tumors, including gastric cancer, and have been closely associated with cancer chemoresistance. However, their interaction and roles in oxaliplatin resistance are not fully understood. Therefore, the present study aimed to elucidate the relationship between NPM and Her-2 in gastric cancer cell lines and clinical samples, and further investigated their role in the resistance of gastric cancer to oxaliplatin...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454404/correlation-between-epidermal-growth-factor-receptor-mutations-and-the-expression-of-estrogen-receptor-%C3%AE-in-advanced-non-small-cell-lung-cancer
#10
Fang Deng, Ming Li, Wu-Lin Shan, Li-Ting Qian, Shui-Ping Meng, Xiao-Lei Zhang, Bao-Long Wang
Epidermal growth factor receptor (EGFR) mutations are more common in non-small cell lung cancer (NSCLC) and in female patients of East Asian origin. Therefore, the present study investigated the presence of EGFR mutations in advanced NSCLC, and assessed its correlation with clinicopathologic factors, including the expression of estrogen receptor-β (ER-β) and patient prognosis. The present study performed a retrospective analysis of 83 patients with stage IIIB-IV NSCLC. The expression of ER-β and p53 were examined using immunohistochemical methods...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454396/treatment-with-the-herbal-formula-songyou-yin-inhibits-epithelial-mesenchymal-transition-in-hepatocellular-carcinoma-through-downregulation-of-tgf-%C3%AE-1-expression-and-inhibition-of-the-smad2-3-signaling-pathway
#11
Susu Zheng, Qingan Jia, Hujia Shen, Xin Xu, Jiajia Ling, Chuyu Jing, Boheng Zhang
It was previously reported that treatment with the herbal formula Songyou Yin (SYY) may serve a role in attenuating epithelial-mesenchymal transition (EMT). In the present study, the effect of treatment with SYY on transforming growth factor-β1 (TGF-β1)-induced EMT was investigated and the potential underlying molecular mechanisms were evaluated. MHCC97H cells were pretreated with SYY for 4 weeks and subsequently named MHCC97HSYY cells. Simultaneously, MHCC97H cells were cultured for 4 weeks without SYY and used as a negative control...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454391/upregulation-of-kin17-is-associated-with-non-small-cell-lung-cancer-invasiveness
#12
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/28454377/frequent-expression-of-human-leukocyte-antigen-class-i-and-the-status-of-intratumoral-immune-cells-in-alveolar-soft-part-sarcoma
#13
Akira Ogose, Hiroyuki Kawashima, Tetsuo Hotta, Takashi Ariizumi, Tetsuro Yamagishi, Naoki Oike, Taro Sasaki, Hiroshi Hatano, Hajime Umezu, Naoto Endo
The prognosis of alveolar soft part sarcoma is poor, despite the slow growth of the tumor. A number of cases with spontaneous regression of this rare tumor have been reported. Although the mechanisms underlying spontaneous regression remain uncertain, local immune reaction may be a possible contributing factor. Immunohistochemical expression of human leukocyte antigen (HLA) class I, cluster of differentiation (CD) 3, CD4, CD8, CD20, CD45, CD56, CD68, CD138 and CD163 were assessed in a series of 10 alveolar soft part sarcomas, and the expression profiles were associated with patients' clinicopathological parameters...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454376/expression-and-function-of-mutt-homolog-1-in-distinct-subtypes-of-breast-cancer
#14
Xiaohui Zhang, Wei Song, Yidong Zhou, Feng Mao, Yan Lin, Jinghong Guan, Qiang Sun
Human MutT homolog 1 (MTH1) detoxifies the oxidized DNA precursor 8-oxo-2'-deoxyguanosine-5'-triphosphate and serves a tumor suppressive role in distinct types of cancer. In the present study, the expression of MTH1 was examined in various subtypes of breast cancer, and the effect of its suppression on breast cancer growth was characterized in vitro and in vivo. MTH1 mRNA and protein levels were assessed using the reverse transcription-quantitative polymerase chain reaction and immunohistochemistry. The effect of MTH1 expression on the proliferation of breast cancer cells was investigated in vitro using Cell Counting Kit-8 and colony formation assays, and in vivo using breast cancer cell line xenografts in mice...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454374/arsenic-trioxide-inhibits-tumor-induced-myeloid-derived-suppressor-cells-and-enhances-t-cell-activity
#15
Qingmin Gao, Jingwei Jiang, Zhaohui Chu, Hao Lin, Xinli Zhou, Xiaohua Liang
Myeloid-derived suppressor cells (MDSCs), one of the major orchestrators of the immunosuppressive network, are associated with immune suppression and considered a prime target for cancer immunotherapy. At present, various strategies have been explored to deplete and/or inactivate MDSCs in vivo. In this study, we investigated the effect of arsenic trioxide (ATO) on MDSCs derived from tumor-bearing mice. This study examined the in vitro and in vivo effects of ATO administration on MDSCs from C57/j mice bearing either the B16 or H22 tumor...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454368/anti-osteoclastic-agent-denosumab-for-a-giant-cell-tumor-of-the-bone-with-concurrent-paget-s-disease-a-case-report
#16
Takaaki Tanaka, John Slavin, Sue-Anne McLachlan, Peter Choong
Paget's disease of the bone may predispose the development of malignant bone tumors such as osteosarcoma. Giant cell tumor (GCT) as a consequence of Paget's disease is rare. Bone GCT is characterized by rapid growth, the destruction of bone, extension to the surrounding soft tissue and abnormal bone turnover caused by an abnormality of the receptor activator of nuclear factor-κB (RANK)-RANK ligand (RANKL) pathway. Denosumab is a RANK-RANKL inhibitor, which is used to treat osteoporosis and bone GCT. In the current study, a 60-year-old male presented with severe pain located between the right thigh and the knee...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454367/matrix-metalloproteinases-in-vietnamese-patients-with-colorectal-cancer
#17
Thao Phuong Bui, Anh Ngoc Hoang, Phuong Lan Le, Bich Thi Pham, Linh Thi Tu Nguyen, Ha Minh Do, To Van Ta, Thai Hong Trinh
Matrix metalloproteinases (MMPs), a family of endopeptidases also known as gelatinases, have been reported to affect the acquisition of the cell proliferative, cell invasive and metastatic phenotype of several types of cancer. In particular, the gelatinases MMP-2 and -9 have been revealed to facilitate tumor growth and invasion in patients with colorectal cancer (CRC). However, it is not known whether the gelatinase activity of MMP-2 and -9 is also elevated in Vietnamese patients with CRC. The activity of MMP-2 and -9 in the tissue samples of 103 patients with CRC was evaluated by gelatin zymography and quantified using ImageJ...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454365/downregulation-of-egfr-in-a-metastatic-brain-lesion-of-egfr-mutated-non-small-cell-lung-cancer-using-a-tyrosine-kinase-inhibitor-a-case-report
#18
Masatoshi Takagaki, Manabu Kinoshita, Kazumi Nishino, Masakazu Nakano, Hiroko Adachi, Morio Ueno, Masanori Kitamura, Yasunori Fujimoto, Kei Tashiro, Yasuhiko Tomita, Fumio Imamura, Toshiki Yoshimine
Brain metastasis is a common complication in patients with cancer, with lung cancer being the most frequent origin of brain metastases. Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) have begun to serve a pivotal role in lung cancer treatment and have been reported to demonstrate anticancer activity against brain metastases by penetrating the blood-brain barrier. The present study reports, to the best of our knowledge, the first case of EGFR-mutated non-small cell lung cancer (NSCLC) brain metastasis that was surgically resected while the lesion was responding to the EGFR-TKI erlotinib...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454362/growth-of-tyrosine-kinase-inhibitor-resistant-philadelphia-positive-acute-lymphoblastic-leukemia-role-of-bone-marrow-stromal-cells
#19
Cheng Zhang, Xi Zhang, Shi-Jie Yang, Xing-Hua Chen
Human bone marrow stromal cells (hBMSCs) may contribute to the growth of tyrosine kinase inhibitor (TKI)-resistant chronic myelogenous leukemia (CML). However, there are certain differences in biology between CML and Philadelphia-positive acute lymphoblastic leukemia (Ph(+) ALL). Little is known about the role and mechanism of hBMSCs on the growth of TKI-resistant Ph(+) ALL. The current study co-cultured hBMSCs with the TKI-resistant SUP-B15. Next, the proliferation of SUP-B15 was detected using a Cell Counting Kit-8...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454358/prognostic-relevance-of-dna-flow-cytometry-in-breast-cancer-revisited-the-25-year-experience-of-the-portuguese-institute-of-oncology-of-lisbon
#20
António E Pinto, Teresa Pereira, Giovani L Silva, Saudade André
The potential prognostic significance of DNA flow cytometric measurements (DNA ploidy and S-phase fraction) in breast cancer remains in dispute. Inconclusive data, primarily due to the lack of consistent standardization and quality control programs, have limited its translation into clinical practice. The aim of the present review, based on the 25-year experience of the Portuguese Institute of Oncology of Lisbon, is to assess the clinical relevance and application of DNA flow cytometry for the prognosis of breast cancer...
April 2017: Oncology Letters
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