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EMT metabolism

Gang Wang, Rui Cao, Yongzhi Wang, Guofeng Qian, Han C Dan, Wei Jiang, Lingao Ju, Min Wu, Yu Xiao, Xinghuan Wang
Simvastatin is currently one of the most common drugs for old patients with hyperlipidemia, hypercholesterolemia and atherosclerotic diseases by reducing cholesterol level and anti-lipid properties. Importantly, simvastatin has also been reported to have anti-tumor effect, but the underlying mechanism is largely unknown. We collected several human bladder samples and performed microarray. Data analysis suggested bladder cancer (BCa) was significantly associated with fatty acid/lipid metabolism via PPAR signalling pathway...
October 25, 2016: Scientific Reports
Menghan Liu, Lake-Ee Quek, Ghazal Sultani, Nigel Turner
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is a common malignancy with dismal prognosis. Metastatic spread and therapeutic resistance, the main causes of PDAC-related mortalities, are both partially underlined by the epithelial-mesenchymal transition (EMT) of PDAC cells. While the role of Warburg metabolism has been recognized in supporting rapid cellular growth and proliferation in many cancer types, less is known about the metabolic changes occurring during EMT, particularly in the context of PDAC...
2016: Cancer & Metabolism
Prashant Trikha, Robert L Plews, Andrew Stiff, Shalini Gautam, Vincent Hsu, David Abood, Robert Wesolowski, Ian Landi, Xiaokui Mo, John Phay, Ching-Shih Chen, John Byrd, Michael Caligiuri, Susheela Tridandapani, William Carson
Myeloid-derived suppressor cells (MDSC) are a heterogeneous population of early myeloid cells that accumulate in the blood and tumors of patients with cancer. MDSC play a critical role during tumor evasion and promote immune suppression through variety of mechanisms, such as the generation of reactive oxygen and nitrogen species (ROS and RNS) and cytokines. AMPactivated protein kinase (AMPK) is an evolutionarily conserved serine/threonine kinase that regulates energy homeostasis and metabolic stress. However, the role of AMPK in the regulation of MDSC function remains largely unexplored...
2016: Oncoimmunology
Denghe Liu, Lu Sun, Xue Qin, Tianhua Liu, Shu Zhang, Yinkun Liu, Shan Li, Kun Guo
OBJECTIVE: Reprogramming energy metabolism has been defined as the ninth hallmark of cancer; glucose deprivation might be a novel, feasible and effective approach for cancer treatment. However, the comprehensive illustration of behavior alteration of hepatocellular carcinoma (HCC) cells induced by glucose restriction is lacking and associated molecular mechanism is still unclear. METHODS: Three human HCC cell lines were cultured with normal control (25.0 mM D-glucose) and low glucose (5...
September 2016: Discovery Medicine
Yuan Seng Wu, Ivy Chung, Won Fen Wong, Atsushi Masamune, Maw Shin Sim, Chung Yeng Looi
BACKGROUND: We previously showed that pancreatic stellate cells (PSC) secreted interleukin (IL)-6 and promoted pancreatic ductal adenocarcinoma (PDAC) cell proliferation via nuclear factor erythroid 2 (Nrf2)-mediated metabolic reprogramming. Epithelial-mesenchymal transition (EMT) is a key process for the metastatic cascade. To study the mechanism of PDAC progression to metastasis, we investigated the role of PSC-secreted IL-6 in activating EMT and the involvement of Nrf2 in this process...
October 14, 2016: Biochimica et Biophysica Acta
Katharina Koch, Rudolf Hartmann, Friederike Schröter, Abigail Kora Suwala, Donata Maciaczyk, Andrea Caroline Krüger, Dieter Willbold, Ulf Dietrich Kahlert, Jaroslaw Maciaczyk
Glioblastoma (GBM) is the most malignant brain tumor with very limited therapeutic options. Standard multimodal treatments, including surgical resection and combined radio-chemotherapy do not target the most aggressive subtype of glioma cells, brain tumor stem cells (BTSCs). BTSCs are thought to be responsible for tumor initiation, progression, and relapse. Furthermore, they have been associated with the expression of mesenchymal features as a result of epithelial-mesenchymal transition (EMT) thereby inducing tumor dissemination and chemo resistance...
September 29, 2016: Oncotarget
Ryuji Matsumoto, Masumi Tsuda, Kazuhiko Yoshida, Mishie Tanino, Taichi Kimura, Hiroshi Nishihara, Takashige Abe, Nobuo Shinohara, Katsuya Nonomura, Shinya Tanaka
In treating bladder cancer, determining the molecular mechanisms of tumor invasion, metastasis, and drug resistance are urgent to improving long-term patient survival. One of the metabolic enzymes, aldo-keto reductase 1C1 (AKR1C1), plays an essential role in cancer invasion/metastasis and chemoresistance. In orthotopic xenograft models of a human bladder cancer cell line, UM-UC-3, metastatic sublines were established from tumors in the liver, lung, and bone. These cells possessed elevated levels of EMT-associated markers, such as Snail, Slug, or CD44, and exhibited enhanced invasion...
October 4, 2016: Scientific Reports
Álvaro Marín-Hernández, Juan Carlos Gallardo-Pérez, Ileana Hernández-Reséndiz, Isis Del Mazo-Monsalvo, Diana Xochiquetzal Robledo-Cadena, Rafael Moreno-Sánchez, Sara Rodríguez-Enríquez
The accelerated growth of solid tumors leads to episodes of both hypoxia and hypoglycemia (HH) affecting their intermediary metabolism, signal transduction and transcriptional activity. A previous study showed that normoxia (20% O2 ) plus 24 h hypoglycemia (2.5 mM glucose) increased glycolytic flux whereas oxidative phosphorylation (OxPhos) was unchanged vs. normoglycemia in HeLa cells. However, the simultaneous effect of HH on energy metabolism has not been yet examined. Therefore, the effect of hypoxia (0...
September 23, 2016: Journal of Cellular Physiology
Beatrice Conti, Cristiana Porcu, Carmela Viscomi, Antonella Minutolo, Susan Costantini, Marco Corazzari, Gino Iannucci, Barbara Barbaro, Clara Balsano
HCV life cycle is strictly correlated with the hepatocyte lipid metabolism; moreover, the progression of HCV chronic hepatitis is accelerated by the presence of liver steatosis. Among the steatogenic genes deregulated during the HCV infection one of the most attractive is the Small Heterodimer Protein 1 (SHP1; NR0B2), that is involved in a remarkable number of metabolic functions. HCV NS5A is an essential and integral component of the HCV membranous-web replicon complex (RC) and plays an essential role to transfer the viral genome from the RCs to the surface of the lipid droplets (LDs) that, in turn, play a key function during HCV life cycle...
September 20, 2016: Oncotarget
Hweixian Leong Penny, Je Lin Sieow, Giulia Adriani, Wei Hseun Yeap, Peter See Chi Ee, Boris San Luis, Bernett Lee, Terence Lee, Shi Ya Mak, Ying Swan Ho, Kong Peng Lam, Choon Kiat Ong, Ruby Y J Huang, Florent Ginhoux, Olaf Rotzschke, Roger D Kamm, Siew Cheng Wong
Patients with pancreatic ductal adenocarcinoma (PDAC) face a clinically intractable disease with poor survival rates, attributed to exceptionally high levels of metastasis. Epithelial-to-mesenchymal transition (EMT) is pronounced at inflammatory foci within the tumor; however, the immunological mechanisms promoting tumor dissemination remain unclear. It is well established that tumors exhibit the Warburg effect, a preferential use of glycolysis for energy production, even in the presence of oxygen, to support rapid growth...
August 2016: Oncoimmunology
Yang Chen, Yan Shi, Guanghai Dai
Hypoxia plays a vital role in tumor metabolism, proliferation, apoptosis, invasion and metastasis via hypoxia-inducible factor (HIF). Epithelial to mesenchymal transition (EMT) is a crucial process to metastasis, which could be triggered by hypoxia. EMT could be regulated by HIF via multiple pathways including TGF-β, Notch, and Wnt/β-catenin. It has been shown that anti-HIF drugs combined with anti-EMT therapies could be a promising strategy for tumor therapy.
August 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
Ga Bin Park, Yoon Hee Chung, Ji Hee Gong, Dong-Hoon Jin, Daejin Kim
Glycogen synthase kinase-3β (GSK-3β) in cancer cells is a critical regulatory component of both cellular metabolism and epithelial-mesenchymal transition (EMT) processes via regulation of the β-catenin/E-cadherin and phosphoinositide 3-kinase (PI3K)/AKT signaling pathway. Lipogenesis of cancer cells also plays a critical role in survival and metastasis. We investigated the role of GSK-3β-mediated intracellular fatty acid synthesis to control EMT in TLR4-activated colorectal cancer cells and the underlying regulatory mechanism...
September 5, 2016: International Journal of Oncology
Lanying Sun, Jin Liang, Qibao Wang, Zhaoyuan Li, Yi Du, Xin Xu
OBJECTIVES: Tongue squamous cell carcinoma (TSCC) is the most frequent type of oral malignancy. Increasing evidence has shown that miRNAs play key roles in many biological processes such as cell development, invasion, proliferation, differentiation, metabolism, apoptosis and migration. MATERIALS AND METHODS: qRT-PCR analysis was performed to measure miR-137 expression. CCK-8 analysis, cell colony formation, wound-healing analysis and invasion were performed to detect resultant cell functions...
October 2016: Cell Proliferation
Nadia Lobello, Flavia Biamonte, Maria Elena Pisanu, Maria Concetta Faniello, Žiga Jakopin, Emanuela Chiarella, Emilia Dora Giovannone, Rita Mancini, Gennaro Ciliberto, Giovanni Cuda, Francesco Costanzo
OBJECTIVES: Ferritin is the major intracellular iron storage protein essential for maintaining the cellular redox status. In recent years ferritin heavy chain (FHC) has been shown to be involved also in the control of cancer cell growth. Analysis of public microarray databases in ovarian cancer revealed a correlation between low FHC expression levels and shorter survival. To better understand the role of FHC in cancer, we have silenced the FHC gene in SKOV3 cells. RESULTS: FHC-KO significantly enhanced cell viability and induced a more aggressive behaviour...
August 22, 2016: Oncotarget
Luigi Ippolito, Alberto Marini, Lorenzo Cavallini, Andrea Morandi, Laura Pietrovito, Gianfranco Pintus, Elisa Giannoni, Thomas Schrader, Martin Puhr, Paola Chiarugi, Maria Letizia Taddei
Drug resistance of cancer cells is recognized as the primary cause of failure of chemotherapeutic treatment in most human cancers. Growing evidences support the idea that deregulated cellular metabolism is linked to such resistance. Indeed, both components of the glycolytic and mitochondrial pathways are involved in altered metabolism linked to chemoresistance of several cancers. Here we investigated the drug-induced metabolic adaptations able to confer advantages to docetaxel resistant prostate cancer (PCa) cells...
August 16, 2016: Oncotarget
Xiao Cui, Zhao Li, Jie Gao, Peng-Ji Gao, Yan-Bing Ni, Ji-Ye Zhu
In this study, we investigated the value of measurement of the chemokine CXCL1 in clinical management of hepatocellular carcinoma (HCC) and its possible role in the molecular pathogenesis of HCC. High CXCL1 expression predicted recurrence in HCC patients and promoted tumor progression in both in vivo and in vitro experimental systems. Overexpression of CXCL1 increased mitochondrial metabolism and activated the epithelial-to-mesenchymal transition (EMT). Using computational analysis we identified the microRNA miR-200a as a putative post-transcriptional regulator of CXCL1...
August 17, 2016: Oncotarget
Ning Cao, Xiaofang Ma, Zhenzhen Guo, Yaqiu Zheng, Shengnan Geng, Mingjing Meng, Zhenhua Du, Haihong Lin, Yongjian Duan, Gangjun Du
Obesity is a risk factor for cancer and cancer-related mortality, however, its role in lung cancer progression remains controversial. This study aimed to assess whether high-fat diet (HFD)-induced obesity promotes lung cancer progression and whether the promotion can be decreased by Kanglaite injection (KLTI). In vivo, HFD-induced overweight or obesity increases the lung carcinoma incidence and multiplicity in a urethane-induced lung carcinogenic model and cancer-related mortality in a LLC allograft model by increasing oxidative stress and cellular signaling molecules including JAK, STAT3, Akt, mTOR, NF-κB and cyclin D1...
August 11, 2016: Oncotarget
Shuang Liu, Yong-Guang Tao
Cancer metabolism and epigenetic alteration are two critical mechanisms for tumorigenesis and cancer progression; however, the dynamic interplay between them remains poorly understood. As reported in the article entitled "Chromatin remodeling factor LSH drives cancer progression by suppressing the activity of fumarate hydratase," which was recently published in Cancer Research, our group examined the physiological role of lymphocyte-specific helicase (LSH) in nasopharyngeal carcinoma (NPC) by focusing on cancer progression and the tricarboxylic acid cycle...
2016: Chinese Journal of Cancer
Rodrigo Pinheiro Araldi, Diego Grando Módolo, Paulo Luiz de Sá Júnior, Sílvio Roberto Consonni, Rodrigo Franco de Carvalho, Franco Peppino Roperto, Willy Beçak, Rita de Cassia Stocco
Cancer is a group of highly complex and heterogeneous diseases with several causes. According to the stochastic model, cancer initiates from mutation in somatic cells, leading to genomic instability and cell transformation. This canonical pathway of carcinogenesis is related to the discovery of important mechanisms that regulate cancer initiation. However, there are few studies describing genetic and metabolic alterations that deregulate transformed cells, resulting in epithelial-mesenchymal transition (EMT) and its most dramatic consequence, the metastasis...
August 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Dhivya Sridaran, Ganesan Ramamoorthi, Rasool MahaboobKhan, Premkumar Kumpati
During tumorigenesis, cancer cells generate complex, unresolved interactions with the surrounding oxystressed cellular milieu called tumor microenvironment (TM) that favors spread of cancer to other body parts. This dissemination of cancer cells from the primary tumor site is the main clinical challenge in cancer treatment. In addition, the significance of enhanced oxidative stress in TM during cancer progression still remains elusive. Thus, the present study was performed to investigate the molecular and cytoskeletal alterations in breast cancer cells associated with oxystressed TM that potentiates metastasis...
July 26, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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