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Binyi Lin, Tianchi Chen, Qijun Zhang, Xiaoxiao Lu, Zhiyun Zheng, Jun Ding, Jinfeng Liu, Zhe Yang, Lei Geng, Liming Wu, Lin Zhou, Shusen Zheng
To investigate the potential oncogene promoting recurrence of hepatocellular carcinoma (HCC) following liver transplantation (LT), throughput RNA sequencing was performed in a subgroup of HCC patients. The up-regulated FAM83D in HCC tissues was found and further verified in 150 patients by real-time PCR and immunohistochemistry. FAM83D overexpression significantly correlated with high HCC recurrence rate following LT and poor HCC characteristics such as high AFP, poor differentiation. Of cancer stem cells (CSCs) markers, CD44 expression was effectively suppressed when FAM83D was knocked down by siRNA...
October 18, 2016: Oncotarget
Junyong Zhang, Zuojin Liu, Zhengrong Lian, Rui Liao, Yi Chen, Yi Qin, Jinlong Wang, Qing Jiang, Xiaobo Wang, Jianping Gong
Monoacylglycerol lipase (MAGL) is a key enzyme in lipid metabolism that is demonstrated to be involved in tumor progression through both energy supply of fatty acid (FA) oxidation and enhancing cancer cell malignance. The aim of this study was to investigate whether MAGL could be a potential therapeutic target and prognostic indicator for hepatocellular carcinoma (HCC). To evaluate the relationship between MAGL levels and clinical characteristics, a tissue microarray (TMA) of 353 human HCC samples was performed...
October 21, 2016: Scientific Reports
Kwong-Fai Wong, Angela M Liu, Wanjin Hong, Zhi Xu, John M Luk
The Hippo pathway regulates the down-stream target Yes-associated protein (YAP) to maintain organ homeostasis, which is commonly inactivated in many types of cancers. However, how cell adhesion dysregulates the Hippo pathway activating YAP oncogene in hepatocellular carcinoma (HCC) remains unclear. Our findings demonstrate that α2β1 integrin (but not other β1 integrins) expressed in HCC cells, after binding to collagen extracellular matrix, could inhibit MST1 kinase phosphorylation and activate YAP pro-oncogenic activities...
October 19, 2016: Oncotarget
Yue Wang, Runping Fang, Ming Cui, Weiying Zhang, Xiao Bai, Huawei Wang, Bowen Liu, Xiaodong Zhang, Lihong Ye
The oncoprotein Yes-associated protein (YAP) in Hippo pathway plays crucial roles in the development of cancer. However, the mechanism of YAP regulation in cancer remains poorly understood. Here, we supposed that the oncoprotein hepatitis B X-interacting protein (HBXIP) might be involved in the modulation of YAP in liver cancer. Interestingly, our data showed that the expression levels of HBXIP were positively associated with those of YAP in clinical hepatocellular carcinoma (HCC) samples by immunohistochemistry (IHC) staining and real-time PCR assays...
October 17, 2016: Cancer Letters
Weijie Li, Shicai Dong, Wei Wei, Guangxiu Wang, Anling Zhang, Peiyu Pu, Zhifan Jia
The transcriptional coactivator with PDZ-binding motif (TAZ) is one of the important downstream effectors of Hippo pathway. In this study, the potential implication of TAZ in gliomagenesis was explored. TAZ expression was identified to be upregulated in glioma specimens and positively correlated with tumor grade. Meanwhile, its expression in nucleus was increased more significantly with the ascending order of tumor grade. Knocking down TAZ inhibited glioma cell proliferation, invasion and promoted apoptosis...
October 13, 2016: Oncotarget
Dariusz Wodziak, Aiwen Dong, Michael F Basin, Anson W Lowe
A recently published study identified Anterior Gradient 2 (AGR2) as a regulator of EGFR signaling by promoting receptor presentation from the endoplasmic reticulum to the cell surface. AGR2 also promotes tissue regeneration in amphibians and fish. Whether AGR2-induced EGFR signaling is essential for tissue regeneration in higher vertebrates was evaluated using a well-characterized murine model for pancreatitis. The impact of AGR2 expression and EGFR signaling on tissue regeneration was evaluated using the caerulein-induced pancreatitis mouse model...
2016: PloS One
Marie-Julie Nokin, Florence Durieux, Paul Peixoto, Barbara Chiavarina, Olivier Peulen, Arnaud Blomme, Andrei Turtoi, Brunella Costanza, Nicolas Smargiasso, Dominique Baiwir, Jean L Scheijen, Casper G Schalkwijk, Justine Leenders, Pascal De Tullio, Elettra Bianchi, Marc Thiry, Koji Uchida, David A Spiegel, James R Cochrane, Craig A Hutton, Edwin De Pauw, Philippe Delvenne, Dominique Belpomme, Vincent Castronovo, Akeila Bellahcène
Metabolic reprogramming toward aerobic glycolysis unavoidably induces methylglyoxal (MG) formation in cancer cells. MG mediates the glycation of proteins to form advanced glycation end products (AGEs). We have recently demonstrated that MG-induced AGEs are a common feature of breast cancer. Little is known regarding the impact of MG-mediated carbonyl stress on tumor progression. Breast tumors with MG stress presented with high nuclear YAP, a key transcriptional co-activator regulating tumor growth and invasion...
October 19, 2016: ELife
Clara Ugolini, Nicla Borrelli, Cristina Niccoli, Rossella Elisei, David Viola, Paolo Vitti, Paolo Miccoli, Fulvio Basolo
CONTEXT: Yes-associated protein-1 (YAP-1) is a player of the Hippo pathway and is involved in regulating cell proliferation. YAP-1 is overexpressed in papillary and anaplastic thyroid cancers. However, a correlation between YAP-1 expression and outcome in thyroid carcinoma has not been conclusively demonstrated. OBJECTIVE: This study was designed to clarify whether YAP-1 may be considered a marker of worse prognosis and outcome in thyroid cancer. DESIGN: A large series of cases of thyroid cancer with a long follow-up were investigated for YAP-1 expression...
October 7, 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
E Leyva-Cruz, L Vásquez-Yeomans, L Carrillo, M Valdez-Moreno
In the waters surrounding Banco Chinchorro in the Mexican Caribbean are spawning and nursery areas for many types of fish. In this natural environment, as opposed to under controlled laboratory conditions, it is almost impossible to link an individual egg to the adult that laid it. This makes identifying the species of the eggs difficult. However, DNA barcodes have made this easier. In the present study, 300 eggs were processed for molecular analysis, from which 139 sequences were obtained. We identified 42 taxa (33 species with their binomial names), 35 genera, and 24 families...
May 17, 2016: Genome Génome / Conseil National de Recherches Canada
Marlen Thiere, Stefanie Kliche, Bettina Müller, Jan Teuber, Isabell Nold, Oliver Stork
Integrin-mediated cell adhesion and signaling is of critical importance for neuronal differentiation. Recent evidence suggests that an "inside-out" activation of β1-integrin, similar to that observed in hematopoietic cells, contributes to the growth and branching of dendrites. In this study, we investigated the role of the hematopoietic adaptor protein adhesion and degranulation promoting adapter protein (ADAP) in these processes. We demonstrate the expression of ADAP in the developing and adult nervous hippocampus, and in outgrowing dendrites of primary hippocampal neurons...
2016: Frontiers in Molecular Neuroscience
Jyoti R Misra, Kenneth D Irvine
The protocadherins Dachsous and Fat initiate a signaling pathway that controls growth and planar cell polarity by regulating the membrane localization of the atypical myosin Dachs. How Dachs is regulated by Fat signaling has remained unclear. Here we identify the vamana gene as playing a crucial role in regulating membrane localization of Dachs and in linking Fat and Dachsous to Dachs regulation. Vamana, an SH3-domain-containing protein, physically associates with and co-localizes with Dachs and promotes its membrane localization...
October 7, 2016: Developmental Cell
Raimundo Barbosa-Barros, Andrés Ricardo Pérez-Riera, Luiz Carlos de Abreu, Ricardo Paulo de Sousa-Rocha, Danielli Oliveira da Costa Lino, Adrian Baranchuk, Li Zhang
Left ventricular involvement in the advanced stage of arrhythmogenic cardiomyopathy (AC) is an evolution of this desmosomopathy. Mutation in intercalated discs explains the phenotypic variability. Abnormal trafficking of the intercalated discs at the site of end-to-end contacts between cardiomyocytes and the canonical Wnt/β-catenin and Hippo signaling pathways have been implicated. In AC, T-wave inversion in lateral leads is the hallmark of left ventricular (LV) involvement. We herein report a case of isolated LV AC in which the initial ECG has typical features: fragmented QRS (fQRS), Twave inversion (TWI) in lateral leads, and ventricular tachycardia from inferobasal LV wall...
September 8, 2016: Journal of Electrocardiology
Huabo Wang, Jie Lu, Lia R Edmunds, Sucheta Kulkarni, James Dolezal, Junyan Tao, Sarangarajan Ranganathan, Laura Jackson, Marc Fromherz, Donna Beer Stolz, Radha Uppala, Sivakama Bharathi, Satdarshan P Monga, Eric S Goetzman, Edward V Prochownik
Hepatoblastoma (HB) is associated with aberrant activation of the β-catenin and Hippo/YAP signaling pathways. Over-expression of mutant β-catenin and YAP in mice induces HBs that express high levels of c-Myc (Myc). In light of recent observations that Myc in unnecessary for long-term hepatocyte proliferation, we have now examined its role in HB pathogenesis using the above model. While Myc was found to be dispensable for in vivo HB initiation it was necessary to sustain rapid tumor growth. Gene expression profiling identified key molecular differences between myc+/+ (WT) and myc-/- (KO) hepatocytes and HBs that explain these behaviors...
October 13, 2016: Journal of Biological Chemistry
Maurizio Pesce, Elisa Messina, Isotta Chimenti, Antonio Paolo Beltrami
The life-long story of the heart starts concomitantly with primary differentiation events occurring in multipotent progenitors located in the so called heart tube. This initially tubular structure starts a looping process which leads to formation of the final four chambered heart with a primary contribution of geometric and position-associated cell sensing. While this establishes the correct patterning of the final cardiac structure, it also feedbacks to fundamental cellular machineries controlling proliferation and differentiation, thus ensuring a coordinated restriction of cell growth and a myocyte terminal differentiation...
October 13, 2016: Stem Cells and Development
Takaaki Higashi, Hiromitsu Hayashi, Yuki Kitano, Kensuke Yamamura, Takayoshi Kaida, Kota Arima, Katsunobu Taki, Shigeki Nakagawa, Hirohisa Okabe, Hidetoshi Nitta, Katsunori Imai, Daisuke Hashimoto, Akira Chikamoto, Toru Beppu, Hideo Baba
Diabetes and obesity are associated with non-alcoholic steatohepatitis and an increased incidence of hepatocellular carcinoma (HCC). TAZ and YAP are equivalently placed downstream effectors of the Hippo pathway with oncogenic roles in human cancers. Statins are commonly used to patients with metabolic problems as hypercholesterolemia. Statins also have anti-cancer properties, and the cross-talk between mevalonate pathway and Hippo pathway was known. The aim of this study is to confirm the statin's anti-cancer effects on HCC cells and its survival benefits in HCC patients with curative surgery...
November 2016: Medical Oncology
Zhiqiang Lin, Haidong Guo, Yuan Cao, Sylvia Zohrabian, Pingzhu Zhou, Qing Ma, Nathan VanDusen, Yuxuan Guo, Jin Zhang, Sean M Stevens, Feng Liang, Qimin Quan, Pim R van Gorp, Amy Li, Cristobal Dos Remedios, Aibin He, Vassilios J Bezzerides, William T Pu
Binding of the transcriptional co-activator YAP with the transcription factor TEAD stimulates growth of the heart and other organs. YAP overexpression potently stimulates fetal cardiomyocyte (CM) proliferation, but YAP's mitogenic potency declines postnatally. While investigating factors that limit YAP's postnatal mitogenic activity, we found that the CM-enriched TEAD1 binding protein VGLL4 inhibits CM proliferation by inhibiting TEAD1-YAP interaction and by targeting TEAD1 for degradation. Importantly, VGLL4 acetylation at lysine 225 negatively regulated its binding to TEAD1...
October 4, 2016: Developmental Cell
Hao Zhang, Decheng Geng, Jian Gao, Yanhua Qi, Yi Shi, Yan Wang, Yang Jiang, Yu Zhang, Jiale Fu, Yu Dong, Shangfeng Gao, Rutong Yu, Xiuping Zhou
Dysregulation of Hippo/YAP signaling leads to aberrant cell growth and neoplasia. Although the roles and regulation of Hippo/YAP signaling were extensively studied in cancer biology recently, study systematically checking the expression pattern of core components of this pathway at the tumor tissue level remains lacking. In this study, we thoroughly examined the profile of core components of Hippo/YAP signaling in patient specimens both at the mRNA and at protein levels. We found that the mRNA level of YAP1/TAZ and their target genes, CRY61, CTGF, and BIRC5, was remarkably amplified in glioma tissues...
October 7, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Ruyi Zou, Da Li, Gang Wang, Mo Zhang, Yili Zhao, Zeyu Yang
The transcriptional coactivator with PDZ-binding motif (TAZ) functions as a downstream regulatory target in the Hippo signaling pathway that plays various roles. We previously developed a cell-based assay and identified the TAZ activator IBS008738 as a potential therapeutic target for glucocorticoid-induced atrophy. To further explore the application of IBS008738 in various muscle-related diseases, we examined the function of IBS008738 in inflammatory cytokine-mediated mouse muscle responses after traumatic brain injury (TBI)...
October 7, 2016: Inflammation
Qiong Duan, Yi Xiao, Lingyan Zhu, Zhenzhen Liu, Xiaoxiao Mao, Zhengxiang Zhou, Chaonan Liao, Jinxing Cai, Fulian Huang, Zehao Liu, Jian Zeng, Ke Xia, Cheng Chang, Jun Qi, Zihua Chen, He Huang, Tianlun Yang
Transcriptional coactivator with PDZ-binding motif (TAZ) is a key transcriptional mediator of Hippo signaling that has been recently reported to mediate Wnt-activated transcription and serve as a component to suppress canonical Wnt/β-catenin activity. The Bromodomain and Extra-terminal domain (BET) family of proteins can recognize the acetylated lysine chain on histones and plays a critical role in transcriptional regulation. However, the mechanisms underlying transcriptional repression by the BET bromodomain are poorly understood...
October 4, 2016: Biochimica et Biophysica Acta
Anna Di Benedetto, Marcella Mottolese, Francesca Sperati, Cristiana Ercolani, Luigi Di Lauro, Laura Pizzuti, Patrizia Vici, Irene Terrenato, Abeer M Shaaban, Sreekumar Sundara-Rajan, Matthew P Humphries, Maddalena Barba, Valerie Speirs, Ruggero De Maria, Marcello Maugeri-Saccà
Male breast cancer (MBC) is a rare hormone-driven disease often associated with obesity. HMG-CoAR is the central enzyme of the mevalonate pathway, a molecular route deputed to produce cholesterol and steroid-based hormones. HMG-CoAR regulates the oncogenic Hippo transducers TAZ/YAP whose expression was previously associated with shorter survival in MBC. 225 MBC samples were immunostained for HMG-CoAR and 124 were considered eligible for exploring its relationship with hormone receptors (ER, PgR, AR), Hippo transducers and survival outcomes...
October 7, 2016: Scientific Reports
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