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https://www.readbyqxmd.com/read/28087714/dlg5-connects-cell-polarity-and-hippo-signaling-protein-networks-by-linking-par-1-with-mst1-2
#1
Julian Kwan, Anna Sczaniecka, Emad Heidary Arash, Liem Nguyen, Chia-Chun Chen, Srdjana Ratkovic, Olga Klezovitch, Liliana Attisano, Helen McNeill, Andrew Emili, Valeri Vasioukhin
Disruption of apical-basal polarity is implicated in developmental disorders and cancer; however, the mechanisms connecting cell polarity proteins with intracellular signaling pathways are largely unknown. We determined previously that membrane-associated guanylate kinase (MAGUK) protein discs large homolog 5 (DLG5) functions in cell polarity and regulates cellular proliferation and differentiation via undefined mechanisms. We report here that DLG5 functions as an evolutionarily conserved scaffold and negative regulator of Hippo signaling, which controls organ size through the modulation of cell proliferation and differentiation...
December 15, 2016: Genes & Development
https://www.readbyqxmd.com/read/28052082/crohn-s-disease-localization-displays-different-predisposing-genetic-variants
#2
Orazio Palmieri, Fabrizio Bossa, Maria Rosa Valvano, Giuseppe Corritore, Tiziana Latiano, Giuseppina Martino, Renata D'Incà, Salvatore Cucchiara, Maria Pastore, Mario D'Altilia, Daniela Scimeca, Giuseppe Biscaglia, Angelo Andriulli, Anna Latiano
BACKGROUND: Crohn's disease (CD) is a pathologic condition with different clinical expressions that may reflect an interplay between genetics and environmental factors. Recently, it has been highlighted that three genetic markers, NOD2, MHC and MST1, were associated to distinct CD sites, supporting the concept that genetic variations may contribute to localize CD. Genetic markers, previously shown to be associated with inflammatory bowel disease (IBD), were tested in CD patients with the aim to better dissect the genetic relationship between ileal, ileocolonic and colonic CD and ascertain whether a different genetic background would support the three disease sites as independent entities...
2017: PloS One
https://www.readbyqxmd.com/read/28052036/angiomotin-regulates-prostate-cancer-cell-proliferation-by-signaling-through-the-hippo-yap-pathway
#3
Hao Zeng, Angelica Ortiz, Peng-Fei Shen, Chien-Jui Cheng, Yu-Chen Lee, Guoyu Yu, Song-Chang Lin, Chad J Creighton, Li-Yuan Yu-Lee, Sue-Hwa Lin
Angiomotin (AMOT) is a family of proteins found to be a component of the apical junctional complex of vertebrate epithelial cells and is recently found to play important roles in neurofibromatosis type 2 (NF-2). Whether AMOT plays a role in prostate cancer (PCa) is unknown. AMOT is expressed as two isoforms, AMOTp80 and AMOTp130, which has a 409 aa N-terminal domain that is absent in AMOTp80. Both AMOTp80 and AMOTp130 are expressed in LNCaP and C4-2B4, but at a low to undetectable level in PC3, DU145, and BPH1 cells...
December 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/28004182/cdk5rap2-interaction-with-components-of-the-hippo-signaling-pathway-may-play-a-role-in-primary-microcephaly
#4
Salil K Sukumaran, Maria Stumpf, Sarah Salamon, Ilyas Ahmad, Kurchi Bhattacharya, Sarah Fischer, Rolf Müller, Janine Altmüller, Birgit Budde, Holger Thiele, Muhammad Tariq, Naveed Altaf Malik, Peter Nürnberg, Shahid Mahmood Baig, Muhammad Sajid Hussain, Angelika A Noegel
Autosomal recessive primary microcephaly (MCPH) is characterized by a substantial reduction in brain size but with normal architecture. It is often linked to mutations in genes coding for centrosomal proteins; however, their role in brain size regulation is not completely understood. By combining homozygosity mapping and whole-exome sequencing in an MCPH family from Pakistan, we identified a novel mutation (XM_011518861.1; c.4114C > T) in CDK5RAP2, the gene associated with primary microcephaly-3 (MCPH3), leading to a premature stop codon (p...
December 21, 2016: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28003097/hippo-signaling-in-the-liver-regulates-organ-size-cell-fate-and%C3%A2-carcinogenesis
#5
REVIEW
Sachin Patel, Fernando D Camargo, Dean Yimlamai
The Hippo signaling pathway, also known as the Salvador-Warts-Hippo pathway, is a regulator of organ size. The pathway takes its name from the Drosophila protein kinase, Hippo (STK4/MST1 and STK3/MST2 in mammals), which, when inactivated, leads to considerable tissue overgrowth. In mammals, MST1 and MST2 negatively regulate the transcriptional co-activators yes-associated protein 1 and WW domain containing transcription regulator 1 (WWTR1/TAZ), which together regulate expression of genes that control proliferation, survival, and differentiation...
December 19, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27940445/impaired-liver-regeneration-in-aged-mice-can-be-rescued-by-silencing-hippo-core-kinases-mst1-and-mst2
#6
Giulio Loforese, Thomas Malinka, Adrian Keogh, Felix Baier, Cedric Simillion, Matteo Montani, Thanos D Halazonetis, Daniel Candinas, Deborah Stroka
The liver has an intrinsic capacity to regenerate in response to injury or surgical resection. Nevertheless, circumstances in which hepatocytes are unresponsive to proliferative signals result in impaired regeneration and hepatic failure. As the Hippo pathway has a canonical role in the maintenance of liver size, we investigated whether it could serve as a therapeutic target to support regeneration. Using a standard two-thirds partial hepatectomy (PH) model in young and aged mice, we demonstrate that the Hippo pathway is modulated across the phases of liver regeneration...
January 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/27910645/publisher-s-note-gaseous-electron-multiplier-based-soft-x-ray-plasma-diagnostics-development-preliminary-tests-at-asdex-upgrade-rev-sci-instrum-87-11e325-2016
#7
M Chernyshova, K Malinowski, T Czarski, A Wojeński, D Vezinet, K T Poźniak, G Kasprowicz, D Mazon, A Jardin, A Herrmann, E Kowalska-Strzęciwilk, R Krawczyk, P Kolasiński, W Zabołotny, P Zienkiewicz
No abstract text is available yet for this article.
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910468/gaseous-electron-multiplier-based-soft-x-ray-plasma-diagnostics-development-preliminary-tests-at-asdex-upgrade
#8
M Chernyshova, K Malinowski, T Czarski, A Wojeński, D Vezinet, K T Poźniak, G Kasprowicz, D Mazon, A Jardin, A Herrmann, E Kowalska-Strzęciwilk, R Krawczyk, P Kolasiński, W Zabołotny, P Zienkiewicz
A Gaseous Electron Multiplier (GEM)-based detector is being developed for soft X-ray diagnostics on tokamaks. Its main goal is to facilitate transport studies of impurities like tungsten. Such studies are very relevant to ITER, where the excessive accumulation of impurities in the plasma core should be avoided. This contribution provides details of the preliminary tests at ASDEX Upgrade (AUG) with a focus on the most important aspects for detector operation in harsh radiation environment. It was shown that both spatially and spectrally resolved data could be collected, in a reasonable agreement with other AUG diagnostics...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27907036/the-characteristic-of-s100a7-induction-by-the-hippo-yap-pathway-in-cervical-and-glossopharyngeal-squamous-cell-carcinoma
#9
Fei Kong, Yunguang Li, Enze Hu, Rui Wang, Junhao Wang, Jin Liu, Jinsan Zhang, Dacheng He, Xueyuan Xiao
S100A7 is expressed in many squamous cell carcinomas (SCCs). Our previous study revealed that S100A7 was dramatically induced in several SCC cells and activation of the Hippo pathway significantly promoted S100A7 in epidermoid carcinoma cells. However, whether the Hippo pathway regulates S100A7 expression in SCCs remains largely unknown. Here, we uncover that S100A7 induction by the Hippo-YAP pathway displays different characteristic in cervical and glossopharyngeal SCC. In well differentiated HCC94 cervical cells and FaDu pharyngeal cells, S100A7 is easily induced by both suspension and dense culture, which is accompanied by an increase in YAP phosphorylation and a decrease in nuclear YAP...
2016: PloS One
https://www.readbyqxmd.com/read/27883091/mycobacterium-tuberculosis-triggered-hippo-pathway-orchestrates-cxcl1-2-expression-to-modulate-host-immune-responses
#10
Monoranjan Boro, Vikas Singh, Kithiganahalli Narayanaswamy Balaji
Mycobacterium tuberculosis (Mtb) pathogenesis encompasses a plethora of finely regulated alterations within the host which eventually coin the outcome of infection. Chemokines are important components in directing immune cell recruitment to the site of infection, and shaping the disease progression. Here, we demonstrate that Hippo (mammalian sterile 20-like 1 and 2 kinases, MST1/2, in mammals), is activated during mycobacterial infection in a toll-like receptor (TLR) 2-interleukin receptor-1 associated kinases (IRAK1/4)-dependent manner...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27881216/interacting-network-of-hippo-wnt-%C3%AE-catenin-and-notch-signaling-represses-liver-tumor-formation
#11
Wantae Kim, Sanjoy Kumar Khan, Yingzi Yang
Acquiring a selective growth advantage by breaking the proliferation barrier established by gatekeeper genes is a centrally important event in tumor formation. Removal of mammalian Hippo kinase Mst1 and Mst2 in hepatocytes leads to very rapid hepatocellular carcinoma (HCC) formation, indicating that the Hippo signaling pathway is a critical gatekeeper in hepatocytes that restrains abnormal growth. By rigorous genetic approaches, we have identified an interacting network of the Hippo, Wnt/β-catenin and Notch signaling pathways that controls organ size and HCC development...
November 24, 2016: BMB Reports
https://www.readbyqxmd.com/read/27869648/hippo-signaling-interactions-with-wnt-%C3%AE-catenin-and-notch-signaling-repress-liver-tumorigenesis
#12
Wantae Kim, Sanjoy Kumar Khan, Jelena Gvozdenovic-Jeremic, Youngeun Kim, Jason Dahlman, Hanjun Kim, Ogyi Park, Tohru Ishitani, Eek-Hoon Jho, Bin Gao, Yingzi Yang
Malignant tumors develop through multiple steps of initiation and progression, and tumor initiation is of singular importance in tumor prevention, diagnosis, and treatment. However, the molecular mechanism whereby a signaling network of interacting pathways restrains proliferation in normal cells and prevents tumor initiation is still poorly understood. Here, we have reported that the Hippo, Wnt/β-catenin, and Notch pathways form an interacting network to maintain liver size and suppress hepatocellular carcinoma (HCC)...
January 3, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27826870/hippo-signaling-in-mitosis-an-updated-view-in-light-of-the-men-pathway
#13
Alexander Hergovich
The Hippo pathway is an essential tumor suppressor signaling network that coordinates cell proliferation, death, and differentiation in higher eukaryotes. Intriguingly, the core components of the Hippo pathway are conserved from yeast to man, with the yeast analogs of mammalian MST1/2 (fly Hippo), MOB1 (fly Mats), LATS1/2 (fly Warts), and NDR1/2 (fly Tricornered) functioning as essential components of the mitotic exit network (MEN). Here, we update our previous summary of mitotic functions of Hippo core components in Drosophila melanogaster and mammals, with particular emphasis on similarities between the yeast MEN pathway and mitotic Hippo signaling...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27825852/osm-mitigates-post-infarction-cardiac-remodeling-and-dysfunction-by-up-regulating-autophagy-through-mst1-suppression
#14
Jianqiang Hu, Lei Zhang, Zhijing Zhao, Mingming Zhang, Jie Lin, Jiaxing Wang, Wenjun Yu, Wanrong Man, Congye Li, Rongqing Zhang, Erhe Gao, Haichang Wang, Dongdong Sun
The incidence and prevalence of heart failure (HF) in the world are rapidly rising possibly attributed to the worsened HF following myocardial infarction (MI) in recent years. Here we examined the effects of oncostatin M (OSM) on postinfarction cardiac remodeling and the underlying mechanisms involved. MI model was induced using left anterior descending coronary artery (LAD) ligation. In addition, cultured neonatal mouse cardiomyocytes were subjected to simulated MI. Our results revealed that OSM alleviated left ventricular remodeling, promoted cardiac function, restored mitochondrial cristae density and architecture disorders after 4weeks of MI...
November 4, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27825096/phosphoinositide-3-kinase-akt-inhibits-mst1-mediated-pro-apoptotic-signaling-through-phosphorylation-of-threonine-120
#15
Zengqiang Yuan, Donghwa Kim, Shaokun Shu, Junbing Wu, Jianping Guo, Lei Xiao, Satoshi Kaneko, Domenico Coppola, Jin Q Cheng
No abstract text is available yet for this article.
October 21, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27793648/shikonin-regulates-c-myc-and-glut1-expression-through-the-mst1-yap1-tead1-axis
#16
Karel Vališ, Pavel Talacko, Valéria Grobárová, Jan Černý, Petr Novák
The general mechanism underlying the tumor suppressor activity of the Hippo signaling pathway remains unclear. In this study, we explore the molecular mechanisms connecting the Hippo signaling pathway with glucose metabolism. We have found that two key regulators of glycolysis, C-MYC and GLUT1, are targets of the Hippo signaling pathway in human leukemia cells. Our results revealed that activation of MST1 by the natural compound shikonin inhibited the expression of GLUT1 and C-MYC. Furthermore, RNAi experiments confirmed the regulation of GLUT1 and C-MYC expression via the MST1-YAP1-TEAD1 axis...
October 25, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27781435/detecting-beer-intake-by-unique-metabolite-patterns
#17
Gözde Gürdeniz, Morten Georg Jensen, Sebastian Meier, Lene Bech, Erik Lund, Lars Ove Dragsted
Evaluation of the health related effects of beer intake is hampered by the lack of accurate tools for assessing intakes (biomarkers). Therefore, we identified plasma and urine metabolites associated with recent beer intake by untargeted metabolomics and established a characteristic metabolite pattern representing raw materials and beer production as a qualitative biomarker of beer intake. In a randomized, crossover, single-blinded meal study (MSt1), 18 participants were given, one at a time, four different test beverages: strong, regular, and nonalcoholic beers and a soft drink...
December 2, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/27765911/integrin-%C3%AE-2%C3%AE-1-inhibits-mst1-kinase-phosphorylation-and-activates-yes-associated-protein-oncogenic-signaling-in-hepatocellular-carcinoma
#18
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
https://www.readbyqxmd.com/read/27746719/integrin-activation-through-the-hematopoietic-adapter-molecule-adap-regulates-dendritic-development-of-hippocampal-neurons
#19
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
https://www.readbyqxmd.com/read/27718125/expression-and-significance-of-hippo-yap-signaling-in-glioma-progression
#20
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
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