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https://www.readbyqxmd.com/read/28109154/-inhibitory-effect-of-overexpressed-kisspeptin-on-proliferation-and-migration-of-mkn-45-gastric-cancer-cells
#1
Xin Wang, Yijiong Li, Ruihua Zhang, Chao Pang, Xiaoqing Jiao, Zhenlong Zhu, Zhengmin Wang
Objective To investigate the expression of kisspeptin in gastric adenocarcinoma and its effect on the proliferation and migration of gastric cancer cells. Methods The level of kisspeptin in 50 gastric cancer tissues and their paracancerous tissues were detected by quantitative real-time PCR and Western blotting. Kisspeptin-siRNA, control-siRNA, pEGFP-N1-kisspeptin, pEGFP-N1 were separately transfected into MKN-45 gastric cancer cells. After 48-hour culture, the levels of matrix metalloproteinase-2 (MMP-2), β-catenin, C-myc, MMP-9, kisspeptin were detected by Western blotting; MTT assay was used to detect the proliferation of MKN-45 cells; wound healing assay was performed to assess the migration ability of MKN-45 cells...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28109086/grade-dependent-expression-of-nima-related-kinase-2-in-glioma-and-its-cellular-upregulatory-activity-on-proliferation-and-invasion
#2
Li Tian, Peng Cheng, Huaiyu Sun, Yulin Wang, Lei Zhang, Zongze Guo
Glioma is one of the most common tumors in central nervous system. The median life expectancy for glioma patients is only 13-15 months. NIMA-related expressed kinase 2 (NEK2) is a kind of serine-threonine kinases and involves in carcinogenesis and progression of cancer, however, the specific roles in the glioma remains unknown. We found the high expression of NEK2 was positively correlated with deteriorated severity of glioma. Therefore, we sought to investigate the effects of NEK2 on U87 and U251 cells. To explore the expression of NEK2 and alteration of signaling pathway factors, qRT-PCR and Western blot analysis were performed...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109085/silencing-of-interferon-induced-transmembrane-protein-1-ifitm1-inhibits-proliferation-migration-and-invasion-in-lung-cancer-cells
#3
Bing Jin, Hua Jin, Jing Wang
Interferon-induced transmembrane protein 1 (IFITM1), a 17-kDa membrane protein, is largely known as a player in many cellular functions. Recently, there have been studies showing overexpression of IFITM1 in cancers and a positive correlation of IFITM1 overexpression with tumor progression. However, it is poorly understood what role IFITM1 plays in lung cancer. In this study, we presented evidence that IFITM1 was highly expressed in lung cancer tissues and cell lines. IFITM1 silencing inhibited lung cancer cell proliferation, migration and invasion <em>in vitro</em>...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109079/silencing-of-ribosomal-protein-l34-rpl34-inhibits-the-proliferation-and-invasion-of-esophageal-cancer-cells
#4
Huijie Fan, Jing Li, Yongxu Jia, Jingjing Wu, Long Yuan, Mingjun Li, Jiangqi Wei, Benling Xu
Ribosomal protein L34 (RPL34) belongs to the L34E family of ribosomal proteins and contains a zinc finger motif. Aberrant expression of RPL34 has been reported in several human malignancies. However, the precise role and potential underlying mechanisms of RPL34 in human esophageal cancer remain largely unknown. Thus, the objective of this study was to investigate the role of RPL34 in esophageal cancer progression. Our results showed that the expression of RPL34 at both mRNA and protein levels was frequently up-regulated in esophageal cancer cell lines...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109078/3-phosphoinositide-dependent-protein-kinase-1-pdk-1-promotes-migration-and-invasion-in-gastric-cancer-cells-through-activating-the-nf-%C3%AE%C2%BAb-pathway
#5
Ning Wu, Changyu He, Bohui Zhu, Jinling Jiang, Yiwen Chen, Tao Ma
Gastric cancer (GC) is one of the most common cancers and the second leading cause of cancer deaths in the world. Manyfactors were reported involving the progression and development of GC. In this study, we aimed to investigate the correlation of 3-phosphoinositide dependent protein kinase 1 (PDK-1) with cell viability, cell migration, and cell invasion of GC. The expression of PDK-1 was measured in different GC cell lines. Thereafter, the expression of PDK-1 was interfered by small hairpin RNA (shRNA) and then incubated with or without the inhibitor of NF-κB pyrrolidine dithiocarbamate (PDTC)...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109061/urocortin-suppresses-endometrial-cancer-cell-migration-via-crfr2-and-its-system-components-are-differentially-modulated-by-estrogen
#6
Gemma L Owens, Kevin M Lawrence, Tom R Jackson, Emma J Crosbie, Berna S Sayan, Henry C Kitchener, Paul A Townsend
Urocortin (UCN1) peptide shares structural and functional homology with corticotropin-releasing factor (CRF). UCN1 is significantly reduced in endometrial adenocarcinoma compared to healthy controls. However, there are no data which evaluate the effects of UCN1 in the endometrium, or how it is modulated. We used proliferation and transwell assays to determine the effect of UCN1 on the proliferation and migration of Ishikawa and HEC1A cells. We also determined the expression levels of UCN1 and its receptors produced by estrogen receptor agonists, and the effect of UCN1 on estrogen receptor expression, using quantitative polymerase chain reaction...
January 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28108732/fak-regulates-e-cadherin-expression-via-p-srcy416-p-erk1-2-p-stat3y705-and-ppar%C3%AE-mir-125b-stat3-signaling-pathway-in-b16f10-melanoma-cells
#7
Guoshun Pei, Yan Lan, Dianhua Chen, Lina Ji, Zi-Chun Hua
Focal adhesion kinase (FAK) is involved in tumor cell migration and metastasis. However, the underlying mechanism remains unclear. Here, we present a signaling pathway involved in the regulation of melanoma cell migration by FAK. We found that the interference of FAK expression suppressed B16F10 cell migration/metastasis, and altered the expressions of genes involved in melanoma migration/metastasis. The down-regulation of FAK inhibited the expression of p-SrcY416, p-ERK1/2, Stat3 and p-Stat3Y705, while promoted the expression of PPARγ, miR-125b and E-cadherin...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28108731/loss-of-endothelial-cell-specific-molecule-1-promotes-the-tumorigenicity-and-metastasis-of-prostate-cancer-cells-through-regulation-of-the-timp-1-mmp-9-expression
#8
Chien-Min Chen, Chu-Liang Lin, Hui-Ling Chiou, Shu-Ching Hsieh, Chia-Liang Lin, Chun-Wen Cheng, Chia-Hung Hung, Jen-Pi Tsai, Yi-Hsien Hsieh
The Endothelial cell specific molecule-1 (ESM1) protein has been involved in proliferation and metastatic progression in multiple tumors. However, there are no studies regarding the mechanism of ESM1 in prostate cancer. We found that ESM1 knockdown in prostate cancer cells resulted in increased cell proliferation and colony formation ability response evidenced by decreased expression of p21 and increased expression of cyclin D1 in prostate cancer cells. Moreover, we revealed that knockdown ESM1 also induced the epithelial-mesenchymal transition (EMT), motility and invasiveness in accordance with the upregulated the MMP-9 expression, while downregulated the TIMP-1 expression...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28108628/metabolic-reprogramming-by-folate-restriction-leads-to-a-less-aggressive-cancer-phenotype
#9
Zahra Ashkavand, Ciara O'Flanagan, Mirko Hennig, Xiuxia Du, Stephen D Hursting, Sergey A Krupenko
: Folate coenzymes are involved in biochemical reactions of one-carbon transfer, and deficiency of this vitamin impairs cellular proliferation, migration, and survival in many cell types. Here, the effect of folate restriction on mammary cancer was evaluated using three distinct breast cancer subtypes differing in their aggressiveness and metastatic potential: noninvasive basal-like (E-Wnt), invasive but minimally metastatic claudin-low (M-Wnt), and highly metastatic claudin-low (metM-Wnt(liver)) cell lines, each derived from the same pool of MMTV-Wnt-1 transgenic mouse mammary tumors...
January 20, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28108508/two-pore-channel-function-is-crucial-for-migration-of-invasive-cancer-cells
#10
Ong Nam Phuong Nguyen, Christian Grimm, Lina S Schneider, Yu-Kai Chao, Carina Atzberger, Karin Bartel, Anna Watermann, Melanie Ulrich, Doris Mayr, Christian Wahl-Schott, Martin Biel, Angelika M Vollmar
Metastatic invasion is the major cause of cancer-related deaths. In this study, we introduce two-pore channels (TPC), a recently described class of NAADP- and PI(3,5)P2-sensitive Ca2+-permeable cation channels in the endolysosomal system of cells, as candidate targets for the treatment of invasive cancers. Inhibition of the channel abrogated migration of metastatic cancer cells in vitro. Silencing or pharmacological inhibition of the two-pore channel TPC2 reduced lung metastasis of mammary mouse cancer cells...
January 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/28108377/cucurbitacin-b-purified-from-ecballium-elaterium-l-a-rich-from-tunisia-inhibits-%C3%AE-5%C3%AE-1-integrin-mediated-adhesion-migration-proliferation-of-human-glioblastoma-cell-line-and-angiogenesis
#11
Imen Touihri-Barakati, Olfa Kallech-Ziri, Wiem Ayadi, Hervé Kovacic, Belgacem Hanchi, Karim Hosni, José Luis
Integrins are essential protagonists in the complex multistep process of cancer progression and are thus attractive targets for the development of anticancer agents. Cucurbitacin B, a triterpenoid purified from the leaves of Tunisian Ecballium elaterium exhibited an anticancer effect and displayed anti-integrin activity on human glioblastoma U87 cells, without being cytotoxic at concentrations up to 500nM. Here we show that cucurbitacin B affected the adhesion and migration of U87 cells to fibronectin in a dose-dependent manner with IC50 values of 86...
January 17, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28108314/mirna-638-promotes-autophagy-and-malignant-phenotypes-of-cancer-cells-via-directly-suppressing-dact3
#12
Yanli Ren, Yujie Chen, Xue Liang, Yan Lu, Wenting Pan, Ming Yang
Dyregulation of autophagy is implicated in human cancers and the mechanism details remains largely unclear. Herein we report the regulatory role of miR-638 in autophagy of esophageal squamous cell carcinoma (ESCC) and breast cancer cells. We found that miR-638 overexpression promotes starvation- and rapamycin-induced autophagy. In ESCC and breast cancer cells, miR-638 acts as an oncogene and promote cell proliferation, migration, as well as invasion in vitro and in vivo. In accordance with this, we observed significantly higher miR-638 expression in ESCC and breast cancer tissues compared to normal tissues...
January 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28108223/involvement-of-the-antioxidative-property-of-morusin-in-blocking-phorbol-ester-induced-malignant-transformation-of-jb6-p-mouse-epidermal-cells
#13
Pai-Shan Cheng, Chao-Chin Hu, Chau-Jong Wang, Yean-Jang Lee, Wei-Chia Chung, Tsui-Hwa Tseng
Chemoprevention has been acknowledged as an important and practical strategy for managing cancer. We have previously synthesized morusin, a prenylated flavonoid that exhibits anti-cancer progression activity. In the present study, we evaluated the anti-cancer promotion potential of morusin by using the mouse epidermal JB6 P(+) cell model. Extensive evidence shows that tumor promotion by phorbol esters is due to the stimulation of reactive oxygen species (ROS). Therefore, the effect of morusin on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced ROS production was assessed...
January 17, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28107698/the-natural-flavonoid-apigenin-sensitizes-human-cd44-prostate-cancer-stem-cells-to-cisplatin-therapy
#14
Suat Erdogan, Kader Turkekul, Rıza Serttas, Zeynep Erdogan
Prostate cancer (PCa) is the second most common type of cancer and the fifth leading cause of cancer-related death among men. Development of chemoresistance, tumor relapse and metastasis remain major barriers to effective treatment and all been identified to be associated with cancer stem cells (CSCs). Natural flavonoids such as apigenin have been shown to have the ability to improve the therapeutic efficacy of common chemotherapy agents through CSCs sensitization. Thus, the aim of this study was to evaluate the combination of apigenin with cisplatin on CD44(+) PCa stem cell growth and migration...
January 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28107418/nf-kappab-is-involved-in-the-regulation-of-emt-genes-in-breast-cancer-cells
#15
Bruno R B Pires, Andre L Mencalha, Gerson M Ferreira, Waldemir F de Souza, José A Morgado-Díaz, Amanda M Maia, Stephany Corrêa, Eliana S F W Abdelhay
The metastatic process in breast cancer is related to the expression of the epithelial-to-mesenchymal transition transcription factors (EMT-TFs) SNAIL, SLUG, SIP1 and TWIST1. EMT-TFs and nuclear factor-κB (NF-κB) activation have been associated with aggressiveness and metastatic potential in carcinomas. Here, we sought to examine the role of NF-κB in the aggressive properties and regulation of EMT-TFs in human breast cancer cells. Blocking NF-κB/p65 activity by reducing its transcript and protein levels (through siRNA-strategy and dehydroxymethylepoxyquinomicin [DHMEQ] treatment) in the aggressive MDA-MB-231 and HCC-1954 cell lines resulted in decreased invasiveness and migration, a downregulation of SLUG, SIP1, TWIST1, MMP11 and N-cadherin transcripts and an upregulation of E-cadherin transcripts...
2017: PloS One
https://www.readbyqxmd.com/read/28107193/microrna-744-promotes-prostate-cancer-progression-through-aberrantly-activating-wnt-%C3%AE-catenin-signaling
#16
Han Guan, Chunhui Liu, Fang Fang, Yeqing Huang, Tao Tao, Zhixin Ling, Zonghao You, Xu Han, Shuqiu Chen, Bin Xu, Ming Chen
Accumulated evidence indicate that miR-744 functions as either tumor suppressor or oncogene in the progression of a variety of tumors, with a tumor type-specific way. However, little is known about how miR-744 impacts on the tumorigenesis of human prostate cancer. In this study, employing the analyses of microarray, qRT-PCR and re-analysis of MSKCC data, we found that CRPC tissues expressed much more miR-744 than ADPC tissues did, and the expression level of miR-744 was inversely associated with survival of CRPC patients...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28107185/hyaluronan-synthase-3-mediated-oncogenic-action-through-forming-inter-regulation-loop-with-tumor-necrosis-factor-alpha-in-oral-cancer
#17
Yi-Zih Kuo, Wei-Yu Fang, Cheng-Chih Huang, Sen-Tien Tsai, Yi-Ching Wang, Chih-Li Yang, Li-Wha Wu
Hyaluronan (HA) is a major extracellular matrix component. However, its role and mediation in oral cancer remains elusive. Hyaluronan synthase 3 (HAS3), involved in pro-inflammatory short chain HA synthesis, was the predominant synthase in oral cancer cells and tissues. HAS3 overexpression significantly increased oral cancer cell migration, invasion and xenograft tumorigenesis accompanied with the increased expression of tumor necrosis factor alpha (TNF-α) and monocyte chemoattractant protein 1 (MCP-1). Conversely, HAS3 depletion abrogated HAS3-mediated stimulation...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28107184/tunneling-nanotubes-promote-intercellular-mitochondria-transfer-followed-by-increased-invasiveness-in-bladder-cancer-cells
#18
Jinjin Lu, Xiufen Zheng, Fan Li, Yang Yu, Zhong Chen, Zheng Liu, Zhihua Wang, Hua Xu, Weimin Yang
Intercellular transfer of organelles via tunneling nanotubes (TNTs) is a novel means of cell-to-cell communication. Here we demonstrate the existence of TNTs between co-cultured RT4 and T24 bladder cancer cells using light microscopy, fluorescence imaging, and scanning electron microscopy (SEM). Spontaneous unidirectional transfer of mitochondria from T24 to RT4 cells was detected using fluorescence imaging and flow cytometry. The distribution of mitochondria migrated from T24 cells was in good agreement with the original mitochondria in RT4 cells, which may imply mitochondrial fusion...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28107095/chibby1-knockdown-promotes-mesenchymal-to-epithelial-transition-like-changes
#19
Victoria Fischer, Michael Wong, Feng-Qian Li, Ken-Ichi Takemaru
Chibby1 (Cby1) was originally isolated as a binding partner for β-catenin, a dual function protein in cell-cell adhesion and in canonical Wnt signaling. The canonical Wnt/β-catenin pathway is dysregulated in various diseases including cancer, most notably of the gastrointestinal origin. To investigate the role of Cby1 in colorectal tumorigenesis, we generated stable Cby1-knockdown (KD) SW480 colon cancer cells. Unexpectedly, we found that Cby1 KD induces mesenchymal-to-epithelial transition (MET)-like changes in SW480 as well as in HEK293 cells...
January 20, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28106780/integrins-and-cell-metabolism-an-intimate-relationship-impacting-cancer
#20
REVIEW
Rehman Ata, Costin N Antonescu
Integrins are important regulators of cell survival, proliferation, adhesion and migration. Once activated, integrins establish a regulated link between the extracellular matrix and the cytoskeleton. Integrins have well-established functions in cancer, such as in controlling cell survival by engagement of many specific intracellular signaling pathways and in facilitating metastasis. Integrins and associated proteins are regulated by control of transcription, membrane traffic, and degradation, as well as by a number of post-translational modifications including glycosylation, allowing integrin function to be modulated to conform to various cellular needs and environmental conditions...
January 18, 2017: International Journal of Molecular Sciences
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