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Cancer Metastasis

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https://www.readbyqxmd.com/read/28454443/mir-185-3p-regulates-the-invasion-and-metastasis-of-nasopharyngeal-carcinoma-by-targeting-wnt2b-in-vitro
#1
Chao Liu, Guo Li, Shuling Ren, Zhongwu Su, Yunyun Wang, Yongquan Tian, Yong Liu, Yuanzheng Qiu
MicroRNAs (miRs) have been recognised as important regulators of malignant behaviour in different types of human cancer, including nasopharyngeal carcinoma (NPC). A previous study by our group revealed that miR-185-3p regulates the radioresistance of NPC cells. The present study aimed to investigate the effect of miR-185-3p on NPC invasion and metastasis. Human NPC CNE-2 and 5-8F cell lines were transfected with a miR-185-3p mimic and miR-185-3p inhibitor, respectively, and their effects on the invasion and metastasis of these cells was assessed using a wound healing assay and Matrigel invasion assay...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454439/oct4-induces-emt-through-lef1-%C3%AE-catenin-dependent-wnt-signaling-pathway-in-hepatocellular-carcinoma
#2
Lu Sun, Tianhua Liu, Shu Zhang, Kun Guo, Yinkun Liu
Octamer 4 (Oct4), a member of the Pit-Oct-Unc transcription factor family required to maintain self-renewal and pluripotency of embryonic stem cells, has been previously identified to be associated with tumorigenesis and malignant transformation of numerous types of cancer including hepatocellular carcinoma (HCC). The present data shows that Oct4 enhances cancer stem cell properties and increases invasion ability in the Huh7 cell line. To increase understanding of the role of Oct4 in HCC, the present study used a functional genomics approach and analyzed the resulting transcriptional profiles to identify Oct4-dependent genes in Huh7...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454436/satb1-promotes-epithelial-mesenchymal-transition-and-metastasis-in-prostate-cancer
#3
Honggang Qi, Xinyang Fu, Yeping Li, Xiang Pang, Sansan Chen, Xiaojun Zhu, Fei Li, Wanlong Tan
Special AT-rich sequence-binding protein-1 (SATB1) is associated with cancer progression and poor clinical outcome. The present study aims to evaluate whether SATB1 affects the biological behaviors of prostate cancer (PCa), and furthermore, to elucidate whether this effect works through the epithelial-mesenchymal transition (EMT) pathway. Firstly, the expression of SATB1 was investigated in a series of PCa tissues as well as in a panel of PCa cell lines. Cell proliferation, migration and invasion were evaluated in SATB1 knockdown and overexpressed PCa cell lines by MTT and Transwell assays...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454418/epigenetic-silencing-of-protocadherin-10-in-colorectal-cancer
#4
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/28454404/correlation-between-epidermal-growth-factor-receptor-mutations-and-the-expression-of-estrogen-receptor-%C3%AE-in-advanced-non-small-cell-lung-cancer
#5
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/28454394/variation-and-significance-of-secretory-immunoglobulin-a-interleukin-6-and-dendritic-cells-in-oral-cancer
#6
Suxin Zhang, Xin Zhang, Ke Yin, Tianke Li, Yang Bao, Zhong Chen
The present study aimed to determine changes in the concentration of secretory immunoglobulin A (SIgA) and interleukin 6 (IL-6) in the saliva of patients with oral cancer, to evaluate the abnormal expression of cluster of differentiation (CD) 1a, CD83, CD80 and CD86 on dendritic cells (DCs) of oral cancer tissues and to discuss the interaction between SIgA, IL-6 and DCs in oral cancer. A total of 40 patients between 27 and 70 years of age, median age 52 years, with primary oral cancer were enrolled in the present study, and a group of 20 healthy male and female volunteers was used as the control group...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454391/upregulation-of-kin17-is-associated-with-non-small-cell-lung-cancer-invasiveness
#7
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/28454390/expression-of-novel-cancer-testis-antigen-tmem31-increases-during-metastatic-melanoma-progression
#8
Jiaqiang Li, Xiaowen Zou, Cailing Li, Jianhua Zhong, Yan Chen, Xiaoyue Zhang, Fuming Qi, Mengshuo Li, Zhiming Cai, Aifa Tang
Cancer/testis (CT) antigens are promising targets for immunotherapy due to their restricted expression in the germ cells of the testis in healthy tissue and high immunogenicity. The aim of the present study was to determine whether transmembrane protein 31 (TMEM31) is a CT antigen and to investigate the pattern of TMEM31 expression during the progression of melanoma. The pattern of expression of human TMEM31 mRNA in multiple human tissues was determined through reverse transcription-polymerase chain reaction analysis...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454389/notch-signaling-is-important-for-epithelial-mesenchymal-transition-induced-by-low-concentrations-of-doxorubicin-in-osteosarcoma-cell-lines
#9
Jian Yang, Weichun Guo, Lu Wang, Ling Yu, Hongjun Mei, Shuo Fang, Anyuan Chen, Yang Liu, Kezhou Xia, Gaiwei Liu
Osteosarcoma is an aggressive pediatric tumor affecting growing bones that typically occurs in adolescents and young adults. Although advances in treatment have been made in recent years, a high proportion of patients relapse due to metastases, which are frequently resistant to chemotherapy and pose a significant threat to long-term survival. Previous studies have demonstrated that the epithelial-mesenchymal transition (EMT) is associated with cancer occurrence and metastasis, and our previous study demonstrated the occurrence of EMT in osteosarcoma...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454376/expression-and-function-of-mutt-homolog-1-in-distinct-subtypes-of-breast-cancer
#10
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/28454367/matrix-metalloproteinases-in-vietnamese-patients-with-colorectal-cancer
#11
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
#12
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/28454357/expression-regulation-and-function-of-mir-495-in-healthy-and-tumor-tissues
#13
Hongli Chen, Xiaman Wang, Ju Bai, Aili He
MicroRNA-495 (miR-495) is a small non-coding RNA encoded by a gene located on chromosome 14 (14q32.31). Its expression is regulated by the transcription factors EF12 and EF47, in addition to promoter methylation status and the fusion oncoprotein mixed-lineage leukemia-AF9. Previous studies suggest that miR-495 is involved in various developmental, immunological and inflammatory processes in healthy tissue, and in the proliferation, invasion, metastasis and drug resistance of cancer cells. The role miR-495 serves in tumors is controversial...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454352/analysis-of-circulating-adipokines-in-patients-newly-diagnosed-with-solid-cancer-associations-with-measures-of-adiposity-and-tumor-characteristics
#14
Nehad Ayoub, Mohammad Alkhatatbeh, Malak Jibreel, Mera Ababneh
The development and progression of cancer is a complex and multifactorial process and the global prevalence of obesity is markedly increasing. A number of studies have made an association between obesity and increased rates of epithelial tumors. Obesity is associated with altered adipokine levels, potentially contributing to the process of tumor development and metastasis. In the current study, the associations between circulating adipokines and measures of adiposity and tumor characteristics among patients diagnosed with solid malignancies were examined at the time of presentation, and following the administration of chemotherapy...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454346/microrna-134-targets-kras-to-suppress-breast-cancer-cell-proliferation-migration-and-invasion
#15
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/28454343/promoter-hypermethylation-of-the-reck-gene-is-associated-with-its-low-expression-and-poor-survival-of-esophageal-squamous-cell-carcinoma
#16
Jing Zhu, Yang Ling, Yun Xu, Mingzhu Lu, Yongping Liu, Changsong Zhang
The present study aimed to investigate the association between the methylation status of the reversion-inducing cysteine-rich protein with kazal motifs (RECK) gene and its mRNA expression levels in patients with esophageal squamous cell carcinoma (ESCC). The methylation status of RECK was analyzed by methylation-specific polymerase chain reaction (PCR), and RECK mRNA expression levels were analyzed by quantitative PCR, in 310 paired ESCC tissues. The mean RECK methylation index (MI) was 0.65 in ESCCs and 0...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454336/promoter-methylation-and-expression-of-raf-kinase-inhibitory-protein-in-esophageal-squamous-cell-carcinoma
#17
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/28454326/trim24-promotes-the-aggression-of-gastric-cancer-via-the-wnt-%C3%AE-catenin-signaling-pathway
#18
Ziling Fang, Jun Deng, Ling Zhang, Xiaojun Xiang, Feng Yu, Jun Chen, Miao Feng, Jianping Xiong
Tripartite motif-containing 24 (TRIM24) is important in tumor development and progression. However, the role of TRIM24 in gastric cancer (GC) and the mechanisms underlying the dysregulated expression of TRIM24 remain to be fully elucidated. In the present study, it was found that TRIM24 was frequently overexpressed in GC cell lines and tissues compared with normal controls, as determined by western blotting and immunohistochemical staining. The high nuclear expression of TRIM24 was correlated with the depth of invasion (P=0...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454322/accumulation-of-low-dose-bix01294-promotes-metastatic-potential-of-u251-glioblastoma-cells
#19
Min Young Kim, Shin-Ji Park, Jae Woong Shim, Yu Jin Song, Kwangmo Yang, Seong-Joon Park, Kyu Heo
BIX01294 (Bix) is known to be a euchromatic histone-lysine N-methyltransferase 2 inhibitor and treatment with Bix suppresses cancer cell survival and proliferation. In the present study, it was observed that sequential treatment with low-dose Bix notably increases glioblastoma cell migration and metastasis. It was demonstrated that U251 cells sequentially treated with low-dose Bix exhibited induced characteristic changes in critical epithelial-mesenchymal transition (EMT) markers, including E-cadherin, N-cadherin, β-catenin and zinc finger protein SNAI2...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454320/mir-198-functions-as-a-tumor-suppressor-in-breast-cancer-by-targeting-cub-domain-containing-protein-1
#20
Yingbin Hu, Ziyuan Tang, Bonian Jiang, Juying Chen, Zhongpin Fu
The molecular mechanisms underlying the dysregulation of microRNAs (miRs) have been previously documented in breast cancer. miR-198 has been reported to be deregulated in several human cancers. However, the detailed effects of miR-198 on breast cancer progression remain unclear. Using quantitative polymerase chain reaction analysis, we demonstrated in the present study that miR-198 was downregulated in breast cancer tissues and cell lines, and that downregulation of miR-198 was significantly correlated with lymph node metastasis...
March 2017: Oncology Letters
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