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https://www.readbyqxmd.com/read/27926482/hexokinase-2-enhances-the-metastatic-potential-of-tongue-squamous-cell-carcinoma-via-the-sod2-h2o2-pathway
#1
Wei Wang, Zhonghua Liu, Luodan Zhao, Jingjing Sun, Qianting He, Wangxiang Yan, Zhiyuan Lu, Anxun Wang
The glycolytic enzyme hexokinase (HK2), which is aberrantly expressed in various types of tumours, is associated with metastasis. However, its role in the progression and metastasis of tongue squamous cell carcinoma (TSCC) remains unclear. The results of our study showed that HK2 expression is often deregulated in TSCC patients. Increased HK2 expression was associated with tumour stage, clinical stage, lymph node metastasis, but not pathological grade, and reduced overall survival. Microarray and western blotting analyses revealed increases in HK2 expression in TSCC cells with higher metastatic potential...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27925454/rap1a-promotes-ovarian-cancer-metastasis-via-activation-of-erk-p38-and-notch-signaling
#2
Lili Lu, Jingshu Wang, Yougen Wu, Ping Wan, Gong Yang
As one of the Ras-associated proteins, Rap1A has been linked to cancer initiation and development. However, the precise function of Rap1A in ovarian cancer is still not understood. Here, we show that Rap1A promotes ovarian cancer tumorigenesis and metastasis via stimulating cell proliferation, migration and invasion both in vivo and in vitro. Mechanistic study showed that Rap1A activates extracellular signal-regulated kinase (ERK), p38 mitogen-activated protein kinase (MAPK) and Notch pathways, leading to the enhanced expression of several epithelial-mesenchymal transition (EMT) markers such as slug, zeb1, vimentin, fibronectin, and MMP9...
December 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27924058/foxo1-inhibits-the-invasion-and-metastasis-of-hepatocellular-carcinoma-by-reversing-zeb2-induced-epithelial-mesenchymal-transition
#3
Tianxiu Dong, Yu Zhang, Yaodong Chen, Pengfei Liu, Tingting An, Jiuwei Zhang, Haichao Yang, Wenjing Zhu, Xiuhua Yang
The epithelial-to-mesenchymal transition (EMT) program is critical for epithelial cell cancer progression and fibrotic diseases. FOXO1 influences a broad range of physiological and pathological processes. However, the mechanism by which FOXO1 inhibits EMT is not fully understood. In this study, we demonstrated that FOXO1 overexpression inhibited cell motility and invasiveness in vitro and inhibited lung metastasis in vivo. In addition, we found that FOXO1 couldreverse the EMT program. FOXO1 silencing by siRNA in hepatocellular carcinoma (HCC) cell lines enhanced the expression of mesenchymal markers and decreased the expression of the epithelial markers...
December 3, 2016: Oncotarget
https://www.readbyqxmd.com/read/27923843/therapeutic-activity-of-anti-axl-antibody-against-triple-negative-breast-cancer-patient-derived-xenografts-and-metastasis
#4
Wilhem Leconet, Myriam Chentouf, Stanislas Du Manoir, Clément Chevalier, Audrey Sirevnt, Imade Aït-Arsa, Muriel Busson, Marta Jarlier, Nina Radosevic-Robin, Charles G Theillet, Dany Chalbos, Jean-Max Pasquet, Christel Larbouret, André Pèlegrin, Bruno Robert
PURPOSE: AXL receptor tyrosine kinase has been described as a relevant molecular marker and a key player in invasiveness, especially in triple negative breast cancer (TNBC). EXPERIMENTAL DESIGN: We evaluate the anti-tumor efficacy of the anti-AXL monoclonal antibody 20G7-D9 in several TNBC cell xenografts or patient-derived xenograft (PDX) models and decipher the underlying mechanisms. In a dataset of 254 basal-like breast cancer samples, genes correlated with AXL expression are enriched in EMT, migration and invasion signaling pathways...
December 6, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27919618/electric-field-induced-suppression-of-pten-drives-epithelial-to-mesenchymal-transition-via-mtorc1-activation
#5
Tiantian Yan, Xupin Jiang, Xiaowei Guo, Wen Chen, Di Tang, Junhui Zhang, Xingyue Zhang, Dongxia Zhang, Qiong Zhang, Jiezhi Jia, Yuesheng Huang
BACKGROUND: Naturally occurring electric fields (EFs) are an intrinsic property of wounds. Endogenous EFs in skin wounds play critical roles in the dynamic and well-ordered biological process of wound healing. The epithelial-to-mesenchymal transition (EMT) allows keratinocytes to transition from sedentary cells to motile cells, facilitating wound healing. However, EMT-related studies have been performed without considering endogenous EFs. Thus, the relationship between electrical signals and the EMT remain elusive...
November 18, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/27917062/integrative-taxonomy-of-the-genus-onchidium-buchannan-1800-mollusca-gastropoda-pulmonata-onchidiidae
#6
Benoît Dayrat, Tricia C Goulding, Deepak Apte, Vishal Bhave, Joseph Comendador, Ngô Xuân Qua Ng, Siong Kiat Tan, Shau Hwai Tan
In an effort to clarify the species diversity of onchidiid slugs, the taxonomy of the genus Onchidium Buchannan, 1800 is revised using an integrative approach. New, fresh specimens were collected in a large number of places, including type localities. The genus Onchidium is redefined here as a clade including only three species which are strongly supported by both morphological and molecular data. All three species were already named: the type species Onchidium typhae Buchannan, 1800, Onchidium stuxbergi (Westerlund, 1883), and Onchidium reevesii (J...
2016: ZooKeys
https://www.readbyqxmd.com/read/27908834/gamma-secretase-inhibitor-impairs-epithelial-to-mesenchymal-transition-induced-by-tgf-%C3%AE-in-ovarian-tumor-cell-lines
#7
M C Pazos, D Abramovich, A Bechis, P Accialini, F Parborell, M Tesone, G Irusta
Ovarian cancer is characterized by being highly metastatic, a feature that represents the main cause of failure of the treatment. This study investigated the effects of γ-secretase inhibition on the TGF-β-induced epithelial-mesenchymal transition (EMT) process in ovarian cancer cell lines. SKOV3 cells incubated in the presence of TGF-β showed morphological and biochemical changes related to EMT, which were blocked by co-stimulation with TGF-β and the γ-secretase inhibitor DAPT. In SKOV3 and IGROV1 cells, the co-stimulation blocked the cadherin switch and the increase in the transcription factors Snail, Slug, Twist and Zeb1 induced by TGF-β...
November 28, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27904777/g3bp1-contributes-to-tumor-metastasis-via-upregulation-of-slug-expression-in-hepatocellular-carcinoma
#8
Ning Dou, Jingde Chen, Shijun Yu, Yong Gao, Yandong Li
RasGAP SH3-domain-Binding Protein 1 (G3BP1) has been implicated in cell growth, migration, and metastasis of some cancers, yet its function in hepatocellular carcinoma (HCC) remains to be explored. In the present study, we reported that G3BP1 was upregulated in HCC tissues compared with adjacent non-cancerous liver tissues both in mRNA and protein levels, and its high expression was significantly correlated with poor prognosis of HCC patients. Functional analyses demonstrated that forced expression of G3BP1 in HCC cells promoted cell migration, and silenced expression of G3BP1 by RNA interference caused opposite effects...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27902959/kaempferol-a-phytoestrogen-suppressed-triclosan-induced-epithelial-mesenchymal-transition-and-metastatic-related-behaviors-of-mcf-7-breast-cancer-cells
#9
Geum-A Lee, Kyung-Chul Choi, Kyung-A Hwang
As a phytoestrogen, kaempferol is known to play a chemopreventive role inhibiting carcinogenesis and cancer progression. In this study, the influences of triclosan, an anti-bacterial agent recently known for an endocrine disrupting chemical (EDC), and kaempferol on breast cancer progression were examined by measuring their effects on epithelial-mesenchymal transition (EMT) and metastatic-related behaviors of MCF-7 breast cancer cells. Morphological changes of MCF-7 cells were observed, and a wound-healing assay was performed after the treatment of triclosan and kaempferol...
November 22, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/27901498/targeting-the-vegf-c-vegfr3-axis-suppresses-slug-mediated-cancer-metastasis-and-stemness-via-inhibition-of-kras-yap1-signaling
#10
REVIEW
Yu-Wen Yeh, Ching-Chia Cheng, Shu-Ting Yang, Chi-Feng Tseng, Ting-Yu Chang, Sin-Ying Tsai, Earl Fu, Chien-Ping Chiang, Li-Chuan Liao, Pei-Wen Tsai, Yung-Luen Yu, Jen-Liang Su
Vascular endothelial growth factor-C (VEGF-C) has been implicated in epithelial-mesenchymal transition (EMT) processes and various human cancers, including skin cancer. Skin cancer is an aggressive human malignancy with increasing incidence worldwide; however, the underlying mechanisms involved in VEGF-C-induced skin cancer stemness and metastasis remain unclear. Here, we report that VEGF-C enhances skin cancer migration, invasion and stemness through Slug up-regulation. Oncomine database analysis indicated that the KRAS/MAPK (mitogen-activated protein kinases) pathway and YAP1 (yes-associated protein 1) expression are positively correlated with metastatic skin cancer...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27891537/on-demand-magnetic-manipulation-of-liquid-metal-in-microfluidic-channels-for-electrical-switching-applications
#11
Jinpyo Jeon, Jeong-Bong Lee, Sang Kug Chung, Daeyoung Kim
We report magnetic-field-driven on-demand manipulation of liquid metal in microfluidic channels filled with base or acid. The liquid metal was coated with iron (Fe) particles and treated with hydrochloric acid to have strong bonding strength with the Fe particles. The magnetic liquid metal slug inserted in the microchannel is manipulated, merged, and separated. In addition, corresponding to the repositioning of an external magnet, the liquid metal slug can be readily moved in microfluidic channels with different angles (>90°) and cross-linked channels in any direction...
November 28, 2016: Lab on a Chip
https://www.readbyqxmd.com/read/27878953/long-non-coding-rna-linc00261-suppresses-gastric-cancer-progression-via-promoting-slug-degradation
#12
Yingcong Yu, Linjin Li, Zhiqiang Zheng, Senrui Chen, Ende Chen, Yiren Hu
Gastric cancer (GC) remains a threat to public health with high incidence and mortality worldwide. Increasing evidence demonstrates that long non-coding RNAs (lncRNAs) play critical regulatory roles in cancer biology, including GC. Previous profiling study showed that lncRNA linc00261 was aberrantly expressed in GC. However, the role of linc00261 in GC progression and the precise molecular mechanism remain unknown. In this study, we report that linc00261 was significantly down-regulated in GC tissues and the expression level of linc00261 negatively correlated with advanced tumour status and clinical stage as well as poor prognostic outcome...
November 23, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27875740/conditional-knockout-of-tfpi-1-in-vsmcs-of-mice-accelerates-atherosclerosis-by-enhancing-amot-yap-pathway
#13
Jiajun Xiao, Kaiyue Jin, Jiping Wang, Jing Ma, Jin Zhang, Nan Jiang, Huijun Wang, Xinping Luo, Jian Fei, Zhugang Wang, Xiao Yang, Duan Ma
BACKGROUND: Tissue factor pathway inhibitor-1 (TFPI-1) has multiple functions and its precise role and molecular mechanism during the development of atherosclerosis are not clear. OBJECTIVES: To determine the effect and molecular mechanism of TFPI-1 deficiency in vascular smooth muscle cells (VSMCs) in atherosclerosis in the apolipoprotein E knockout (ApoE(-/-)) mouse. METHODS AND RESULTS: A mouse model with a conditional knockout of TFPI-1 in VSMCs in an atherosclerosis-prone background (ApoE(-/-)) was generated...
November 12, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27868181/correlation-between-the-high-expression-levels-of-cancer-germline-genes-with-clinical-characteristics-in-esophageal-squamous-cell-carcinoma
#14
Xinfeng Chen, Liping Wang, Dongli Yue, Jinyan Liu, Lan Huang, Li Yang, Ling Cao, Guohui Qin, Anqi Li, Dan Wang, Meng Wang, Yu Qi, Bin Zhang, Pierre van der Bruggen, Yi Zhang
Antigens encoded by cancer-germline genes are attractive targets for cancer immunotherapy. In this study, we aimed to evaluate the mRNA expression of cancer-germline genes, expression of the encoded proteins in patients with esophageal squamous cell carcinoma (ESCC) and their correlations with clinical characteristics. In addition, the effects of downregulation cancer-germline genes on ESCC cells were assessed in vitro. Our results showed that cancer-germline genes were frequently expressed in ESCC samples...
November 21, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27865657/cranial-adaptations-for-feeding-on-snails-in-species-of-sibynomorphus-dipsadidae-dipsadinae
#15
Marina Meireles Dos Santos, Fernanda Magalhães da Silva, Erika Hingst-Zaher, Fabio Andrade Machado, Hussam El Dine Zaher, Ana Lúcia da Costa Prudente
Neotropical "goo-eating" dipsadine snakes display a set of morphological and histo-chemical adaptations linked to the capture of their soft-bodied, viscous invertebrate prey. Within this group, species from the genus Sibynomorphus feed chiefly on snails and slugs. Here, we analyzed a series of skull and mandible characters in S. mikanii, S. neuwiedi and S. turgidus using geometric morphometrics, with the aim of assessing morphological adaptations related to slug- and snail-feeding in that genus. We further compared the results with Leptodeira annulata, a species that feeds on vertebrates...
September 28, 2016: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/27863449/il6-mediated-inflammatory-loop-reprograms-normal-to-emt-metastatic-cscs-in-pre-neoplastic-liver-of-tgf%C3%AE-deficient-%C3%AE-2sp-mice
#16
Abhisek Mitra, Jun Yan, Xueqing Xia, Shouhao Zhou, Jian Chen, Lopa Mishra, Shulin Li
Hepatocellular carcinoma (HCC) is the second-leading cause of cancer-related deaths world-wide with poor survival rate. As many as 40% of HCCs are clonal, with alteration of key tumor suppressor pathways in stem cells is the primary cause of HCC initiation. However, mechanisms that generate metastatic stem cells in pre-neoplastic liver tissue are not well understood. We hypothesized that chronic inflammation is a major driver of the transformation of genetically defective liver stem cells (LSCs) into highly metastatic liver cancer cells in premalignant liver tissue...
November 18, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27853625/targeting-of-slug-sensitizes-anaplastic-thyroid-carcinoma-sw1736-cells-to-doxorubicin-via-puma-upregulation
#17
Anbing Dong, Xuelong Jiao, Dong Chen, Fengyun Hao, Kejun Zhang
Anaplastic thyroid carcinoma (ATC) is one of the most aggressive human cancers and often shows resistance to multimodal therapeutic approaches. It has been shown that the transcriptional repressor Slug inhibits the chemotherapeutic agent-induced apoptosis of cancer cells. We evaluated whether targeting of Slug could augment doxorubicin (DOX)-induced apoptosis of ATC cells. We also determined changes in PUMA (p53-upregulated modulator of apoptosis) expression levels to identify possible mechanisms of their combined actions...
2016: International Journal of Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27845909/platelet-derived-growth-factor-receptor-alpha-mediates-nodal-metastases-in-papillary-thyroid-cancer-by-driving-the-epithelial-mesenchymal-transition
#18
Esther Ekpe-Adewuyi, Ana Lopez-Campistrous, Xiaoyun Tang, David N Brindley, Todd P W McMullen
Recently platelet derived growth factor receptor-alpha (PDGFRα) was recognized as a potential target to treat aggressive papillary thyroid cancer given its strong association with lymph node metastases. However, it is unclear how PDGFRα potentiates metastases and if it works through the canonical MAPK pathway traditionally linked to PTC oncogenesis. We explored the phenotypic changes driven by PDGFRα activation in human papillary thyroid cancer (PTC) cells and the downstream signalling cascades through which they are effected...
November 11, 2016: Oncotarget
https://www.readbyqxmd.com/read/27836787/tumor-budding-at-the-invasive-front-of-colorectal-cancer-may-not-be-associated-with-the-epithelial-mesenchymal-transition
#19
Noriyuki Yamada, Tamotsu Sugai, Makoto Eizuka, Koudai Tsuchida, Ryo Sugimoto, Yoshiharu Mue, Masamichi Suzuki, Mitsumasa Osakabe, Noriyuki Uesugi, Kazuyuki Ishida, Kouki Otsuka, Takayuki Matsumoto
Tumor budding is thought to reflect the epithelial-mesenchymal transition (EMT). However, the molecular mechanism linking tumor buds and the EMT remains unclear. Here, we examined the induction of tumor budding and EMT and their association with EMT-related proteins (ZEB1, TWIST, SNAIL and SLUG) in colorectal cancer (CRC). Immunohistochemical expression of pan-cytokeratin was examined for identification of tumor budding in 101 CRCs. Grading of tumor budding was classified into low and high grade groups. Tissue micro-array was conducted to identify tumor budding sites...
November 8, 2016: Human Pathology
https://www.readbyqxmd.com/read/27832738/comparative-transcriptomics-enlarges-the-toolkit-of-known-developmental-genes-in-mollusks
#20
A L De Oliveira, T Wollesen, A Kristof, M Scherholz, E Redl, C Todt, C Bleidorn, A Wanninger
BACKGROUND: Mollusks display a striking morphological disparity, including, among others, worm-like animals (the aplacophorans), snails and slugs, bivalves, and cephalopods. This phenotypic diversity renders them ideal for studies into animal evolution. Despite being one of the most species-rich phyla, molecular and in silico studies concerning specific key developmental gene families are still scarce, thus hampering deeper insights into the molecular machinery that governs the development and evolution of the various molluscan class-level taxa...
November 10, 2016: BMC Genomics
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