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https://www.readbyqxmd.com/read/28823082/mir-3910-promotes-the-growth-and-migration-of-cancer-cells-in-the-progression-of-hepatocellular-carcinoma
#1
Lina Cheng, Hongwei Wang, Shuangyin Han
INTRODUCTION: Previous studies have reported that specific depletion of mammalian sterile-like kinase (MST1) in the mouse liver driven Hepatocellular carcinoma (HCC). However, how the expression of MST1 was regulated in the progression of HCC remains largely unknown. MATERIALS AND METHODS: The expression of miR-3910 in the HCC tissues and cell lines were examined using q-PCR. The functions of miR-3910 in HCC were examined using MTT assay, Boyden chamber assay and soft agar assay...
August 19, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28822004/in-vitro-validation-of-the-hippo-pathway-as-a-pharmacological-target-for-canine-mammary-gland-tumors
#2
Samantha Guillemette, Charlène Rico, Philippe Godin, Derek Boerboom, Marilène Paquet
Canine mammary tumors (CMTs) are the most common neoplasms in intact female dogs. Some clinical and molecular similarities between certain CMT subtypes and breast cancer make them a potential model for the study of the human disease. As misregulated Hippo signaling is thought to play an important role in breast cancer development and also occurs in CMTs, we sought to determine if Hippo represents a valid pharmacological target for the treatment of CMTs. Six CMT cell lines were assessed for their expression of the Hippo pathway effectors YAP and TAZ and for their sensitivity to verteporfin, an inhibitor of YAP-mediated transcriptional coactivation...
August 18, 2017: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/28820907/positive-regulatory-interactions-between-yap-and-hedgehog-signalling-in-skin-homeostasis-and-bcc-development-in-mouse-skin-in-vivo
#3
Bassem Akladios, Veronica Mendoza Reinoso, Jason E Cain, Taopeng Wang, Duncan L Lambie, D Neil Watkins, Annemiek Beverdam
Skin is a highly plastic tissue that undergoes tissue turnover throughout life, but also in response to injury. YAP and Hedgehog signalling play a central role in the control of epidermal stem/progenitor cells in the skin during embryonic development, in postnatal tissue homeostasis and in skin carcinogenesis. However, the genetic contexts in which they act to control tissue homeostasis remain mostly unresolved. We provide compelling evidence that epidermal YAP and Hedgehog/GLI2 signalling undergo positive regulatory interactions in the control of normal epidermal homeostasis and in basal cell carcinoma (BCC) development, which in the large majority of cases is caused by aberrant Hedgehog signalling activity...
2017: PloS One
https://www.readbyqxmd.com/read/28820389/hippo-pathway-brief-overview-of-its-relevance-in-cancer
#4
A L Zygulska, K Krzemieniecki, P Pierzchalski
The Hippo pathway is the major regulator of organ growth and proliferation. Described initially in Drosophila, it is now recognized as one of the most conserved molecular pathways in all metazoan. Recent studies have revealed the Hippo signalling pathway might contribute to tumorigenesis and cancer development. The core components of the Hippo pathway include the mammalian sterile 20-like kinases (MSTs), large tumour suppressor kinases (LATSs), the adaptor proteins Salvador homologue 1 (SAV1, also called WW45) and Mps One Binder kinase activator proteins...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28820314/flow-pattern-dependent-endothelial-cell-responses-through-transcriptional-regulation
#5
Hiroyuki Nakajima, Naoki Mochizuki
Blood flow provides endothelial cells (ECs) lining the inside of blood vessels with mechanical stimuli as well as humoral stimuli. Fluid shear stress, the frictional force between flowing blood and ECs, is recognized as an essential mechanical cue for vascular growth, remodeling, and homeostasis. ECs differentially respond to distinct flow patterns. High laminar shear flow leads to inhibition of cell cycle progression and stabilizes vessels, whereas low shear flow or disturbed flow leads to increased turnover of ECs and inflammatory responses of ECs prone to atherogenic...
August 18, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28819447/targeting-activated-platelets-a-unique-and-potentially-universal-approach-for-cancer-imaging
#6
May Lin Yap, James D McFadyen, Xiaowei Wang, Nicholas A Zia, Jan David Hohmann, Melanie Ziegler, Yu Yao, Alan Pham, Matthew Harris, Paul S Donnelly, P Mark Hogarth, Geoffrey A Pietersz, Bock Lim, Karlheinz Peter
Rationale The early detection of primary tumours and metastatic disease is vital for successful therapy and is contingent upon highly specific molecular markers and sensitive, non-invasive imaging techniques. We hypothesized that the accumulation of activated platelets within tumours is a general phenomenon and thus represents a novel means for the molecular imaging of cancer. Here we investigate a unique single chain antibody (scFv), which specifically targets activated platelets, as a novel biotechnological tool for molecular imaging of cancer...
2017: Theranostics
https://www.readbyqxmd.com/read/28815883/wwc2-is-an-independent-prognostic-factor-and-prevents-invasion-via-hippo-signalling-in-hepatocellular-carcinoma
#7
Yijun Zhang, Shumei Yan, Jiewei Chen, Caixia Gan, Dong Chen, Yan Li, Jiahuai Wen, Joachim Kremerskothen, Shilu Chen, Jiangbo Zhang, Yun Cao
WWC family proteins negatively regulate HEK293 cell proliferation and organ growth by suppressing the transcriptional activity of Yes-associated protein (YAP), a major effector of the Hippo pathway. The function of the scaffolding protein WWC1 (also called KIBRA) has been intensively studied in cells and animal models. However, the expression and clinicopathologic significance of WWC2 in cancer are poorly characterized. This study aimed to clarify the biological function and mechanism of action of WWC2 in hepatocellular carcinoma (HCC)...
August 16, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28814026/design-and-characterization-of-low-cost-fabric-based-flat-pneumatic-actuators-for-soft-assistive-glove-application
#8
Hong Kai Yap, Frederick Sebastian, Christopher Wiedeman, Chen-Hua Yeow
We present the design of low-cost fabric-based Hat pneumatic actuators for soft assistive glove application. The soft assistive glove is designed to assist hand impaired patients in performing activities of daily living and rehabilitation. The actuators consist of flexible materials such as fabric and latex bladder. Using zero volume actuation concept, the 2D configuration of the actuators simplifies the manufacturing process and allows the actuators to be more compact. The actuators achieve bi-directional flexion and extension motions...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813602/carbodicarbenes-unexpected-%C3%AF-accepting-ability-during-re-activity-with-small-molecules
#9
Wen-Ching Chen, Wei-Chih Shih, Titel Jurca, Lili Zhao, Diego M Andrada, Chun-Jung Peng, Chun-Chi Chang, Shu-Kai Liu, Yi-Ping Wang, Yuh-Sheng Wen, Glenn P A Yap, Chao-Ping Hsu, Gernot Frenking, Tiow-Gan Ong
An investigation of carbodicarbenes, the less explored member of the carbenic complex/ligand family has yielded unexpected electronic features and concomitant reactivity. Observed 1,2-addition of E-H bonds (E = B, C, Si) across the carbone central carbon and that of the flanking NHC fragment, combined with single-crystal X-ray studies of a model Pd complex strongly suggests a significant level of π-accepting ability at the central carbon of the NHC moiety. This feature is atypical of classic NHCs, which are strong σ-donors, with only nominal π-accepting ability...
August 16, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28809862/gnaq-and-gna11-mutations-and-downstream-yap-activation-in-choroidal-nevi
#10
M J C Vader, M C Madigan, M Versluis, H M Suleiman, G Gezgin, N A Gruis, J J Out-Luiting, W Bergman, R M Verdijk, M J Jager, P A van der Velden
BACKGROUND: Mutations in GNAQ/11 genes are considered an early event in the development of uveal melanoma that may derive from a pre-existing nevus. The Hippo pathway, by way of YAP activation, rather than MAP kinase, has a role in the oncogenic capacity of GNAQ/11 mutations. METHODS: We investigated 16 nevi from 13 human eyes for driver GNAQ/11 mutations using droplet digital PCR and determined whether nevi are clonal by quantifying mutant nevus cell fractions...
August 15, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28809555/electronic-magnetic-and-redox-properties-and-o2-reactivity-of-iron-ii-and-nickel-ii-o-semiquinonate-complexes-of-a-tris-thioether-ligand-uncovering-the-intradiol-cleaving-reactivity-of-an-iron-ii-o-semiquinonate-complex
#11
Peng Wang, Michelle M Killian, Mohamed R Saber, Tian Qiu, Glenn P A Yap, Codrina V Popescu, Joel Rosenthal, Kim R Dunbar, Thomas C Brunold, Charles G Riordan
The iron(II) semiquinonate character within the iron(III) catecholate species has been proposed by numerous studies to account for the O2 reactivity of intradiol catechol dioxygenases, but a well-characterized iron(II) semiquinonate species that exhibits intradiol cleaving reactivity has not yet been reported. In this study, a detailed electronic structure description of the first iron(II) o-semiquinonate complex, [PhTt(tBu)]Fe(phenSQ) [PhTt(tBu) = phenyltris(tert-butylthiomethyl)borate; phenSQ = 9,10-phenanthrenesemiquinonate; Wang et al...
August 15, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28806318/computed-tomography-image-quality-evaluation-of-a-new-iterative-reconstruction-algorithm-in-the-abdomen-adaptive-statistical-iterative-reconstruction-v-a-comparison-with-model-based-iterative-reconstruction-adaptive-statistical-iterative-reconstruction-and
#12
Martin H Goodenberger, Nicolaus A Wagner-Bartak, Shiva Gupta, Xinming Liu, Ramon Q Yap, Jia Sun, Eric P Tamm, Corey T Jensen
OBJECTIVE: The purpose of this study was to compare abdominopelvic computed tomography images reconstructed with adaptive statistical iterative reconstruction-V (ASIR-V) with model-based iterative reconstruction (Veo 3.0), ASIR, and filtered back projection (FBP). METHODS AND MATERIALS: Abdominopelvic computed tomography scans for 36 patients (26 males and 10 females) were reconstructed using FBP, ASIR (80%), Veo 3.0, and ASIR-V (30%, 60%, 90%). Mean ± SD patient age was 32 ± 10 years with mean ± SD body mass index of 26...
August 12, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28805663/yap-taz-regulates-sprouting-angiogenesis-and-vascular-barrier-maturation
#13
Jongshin Kim, Yoo Hyung Kim, Jaeryung Kim, Do Young Park, Hosung Bae, Da-Hye Lee, Kyun Hoo Kim, Seon Pyo Hong, Seung Pil Jang, Yoshiaki Kubota, Young-Guen Kwon, Dae-Sik Lim, Gou Young Koh
Angiogenesis is a multistep process that requires coordinated migration, proliferation, and junction formation of vascular endothelial cells (ECs) to form new vessel branches in response to growth stimuli. Major intracellular signaling pathways that regulate angiogenesis have been well elucidated, but key transcriptional regulators that mediate these signaling pathways and control EC behaviors are only beginning to be understood. Here, we show that YAP/TAZ, a transcriptional coactivator that acts as an end effector of Hippo signaling, is critical for sprouting angiogenesis and vascular barrier formation and maturation...
August 14, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28804541/a-potential-role-for-the-hippo-pathway-protein-yap-in-controlling-proliferation-cell-cycle-progression-and-autophagy-in-bcpap-and-ki-thyroid-papillary-carcinoma-cells
#14
Zeming Liu, Wen Zeng, Shi Wang, Xiangwang Zhao, Yawen Guo, Pan Yu, Xingjie Yin, Chunping Liu, Tao Huang
PURPOSE: The aims were two-fold: first, to examine the expression of Yes-activated protein (YAP), a key Hippo pathway regulator, in clinical thyroid papillary carcinoma samples and to correlate this with clinicopathological parameters; second, to explore the role of YAP in regulating cell growth and division in vitro. METHODS AND RESULTS: YAP expression was determined by immunohistochemistry of clinical thyroid papillary carcinoma tissue microarrays and expression was correlated with clinicopathological parameters...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28799961/nurses-perceptions-of-psychosocial-care-and-barriers-to-its-provision-a-qualitative-study
#15
Cassandra Siyun Chen, Sally Wai-Chi Chan, Moon Fai Chan, Suk Foon Yap, Wenru Wang, Yanika Kowitlawakul
BACKGROUND: Psychosocial care is the culturally sensitive provision of psychological, social, and spiritual care through therapeutic communication. Current evidence suggests that effective psychosocial care improves patients' health outcomes and quality of life. PURPOSE: The aim of this study was to explore nurses' perceptions and experiences in providing psychosocial care to patients and to identify the related barriers and challenges. METHODS: An exploratory qualitative design using semistructured, individual, face-to-face interviews was adopted...
August 10, 2017: Journal of Nursing Research: JNR
https://www.readbyqxmd.com/read/28799225/hydrogels-with-reversible-mechanics-to-probe-dynamic-cell-microenvironments
#16
Adrianne Rosales, Sebastian L Vega, Frank W DelRio, Jason A Burdick, Kristi S Anseth
The relationship between ECM mechanics and cell behavior is dynamic, as cells remodel and respond to changes in their local environment. Most in vitro substrates are static and supraphysiologically stiff; thus, platforms with dynamic and reversible mechanical changes are needed. Here, we developed hyaluronic acid-based substrates capable of sequential photodegradation and photoinitiated crosslinking reactions to "soften" and then "stiffen" the hydrogels over a physiologically-relevant range of moduli. Reversible mechanical signaling to adhered cells was demonstrated with human mesenchymal stem cells...
August 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28797843/blockade-of-stearoyl-coa-desaturase-1-activity-reverts-resistance-to-cisplatin-in-lung-cancer-stem-cells
#17
Maria Elena Pisanu, Alessia Noto, Claudia De Vitis, Stefania Morrone, Giosuè Scognamiglio, Gerardo Botti, Federico Venuta, Daniele Diso, Ziga Jakopin, Fabrizio Padula, Alberto Ricci, Salvatore Mariotta, Maria Rosaria Giovagnoli, Enrico Giarnieri, Ivano Amelio, Massimiliano Agostini, Gerry Melino, Gennaro Ciliberto, Rita Mancini
Poor prognosis in lung cancer has been attributed to the presence of lung cancer stem cells (CSCs) which resist chemotherapy and cause disease recurrence. Hence, the strong need to identify mechanisms of chemoresistance and to develop new combination therapies. We have previously shown that Stearoyl-CoA-desaturase 1 (SCD1), the enzyme responsible for the conversion of saturated to monounsaturated fatty acids is upregulated in 3D lung cancer spheroids and is an upstream activator of key proliferation pathways β-catenin and YAP/TAZ...
August 7, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28797107/jasplakinolide-induces-primary-cilium-formation-through-cell-rounding-and-yap-inactivation
#18
Tomoaki Nagai, Kensaku Mizuno
Primary cilia are non-motile cilia that serve as cellular antennae for sensing and transducing extracellular signals. In general, primary cilia are generated by cell quiescence signals. Recent studies have shown that manipulations to increase actin assembly suppress quiescence-induced ciliogenesis. To further examine the role of actin dynamics in ciliogenesis, we analyzed the effect of jasplakinolide (Jasp), a potent inducer of actin polymerization, on ciliogenesis. Unexpectedly, Jasp treatment induced ciliogenesis in serum-fed cells cultured at low density...
2017: PloS One
https://www.readbyqxmd.com/read/28796627/automated-breast-ultrasound-lesions-detection-using-convolutional-neural-networks
#19
Moi Hoon Yap, Gerard Pons, Joan Marti, Sergi Ganau, Melcior Sentis, Reyer Zwiggelaar, Adrian K Davison, Robert Marti
Breast lesion detection using ultrasound imaging is considered an important step of Computer-Aided Diagnosis systems. Over the past decade, researchers have demonstrated the possibilities to automate the initial lesion detection. However, the lack of a common dataset impedes research when comparing the performance of such algorithms. This paper proposes the use of deep learning approaches for breast ultrasound lesion detection and investigates three different methods: a Patch-based LeNet, a U-Net, and a transfer learning approach with a pretrained FCN-AlexNet...
August 7, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28796248/upregulation-of-dact2-suppresses-proliferation-and-enhances-apoptosis-of-glioma-cell-via-inactivation-of-yap-signaling-pathway
#20
Ying Tan, Qiu-Meng Li, Ning Huang, Si Cheng, Guan-Jian Zhao, Hong Chen, Song Chen, Zhao-Hua Tang, Wen-Qian Zhang, Qin Huang, Yuan Cheng
DACT2, one of the Dact gene family members, was shown to function as a tumor suppressor. However, its function in gliomas remains largely unknown. In this study, we investigated the role of DACT2, underlying molecular mechanisms and its clinical significance in glioma patients. Downexpression of DACT2 in gliomas compared with adjacent normal brain tissues was correlated with glioma grade and poor survival. Cox regression analysis revealed that the DACT2 is an independent prognostic indicator for glioma patients...
August 10, 2017: Cell Death & Disease
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