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https://www.readbyqxmd.com/read/28548560/microalgal-oil-from-schizochytrium-sp-prevents-hfd-induced-abdominal-fat-accumulation-in-mice
#1
Jinhui Yu, Yong Ma, Jie Sun, Liyuan Ran, Youwei Li, Ning Wang, Tao Yu, Wenting Gao, Wenbin Jia, Rujiao Jiang, Meihua Guo, Yuping Bi, Yingjie Wu
OBJECTIVE: Dietary n-3 polyunsaturated fatty acids (PUFAs), especially eicosapentaenoic acids (EPA) and docosahexaenoic acid (DHA), are proved to be effective in obesity reduction. Microalgal oil (MO) is an important alternative source of n-3 PUFAs that effectively alleviates obesity. The aim of the present study was to explore the anti-obesity effects of microalgal oil from Schizochytrium sp. (SMO) and to compare the effects of 2 SMOs (SMO1 and SMO2) with different levels of purity of n-3 PUFAs on high fat diet (HFD)-induced obesity in male C57BL/6J mice...
May 26, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28527471/the-electron-shuffle-cerium-influences-samarium-4f-orbital-occupancy-in-heteronuclear-ce-sm-oxide-clusters
#2
Jared O Kafader, Josey E Topolski, Vicmarie Marrero-Colon, Srinivasan S Iyengar, Caroline Chick Jarrold
The anion photoelectron (PE) spectra along with supporting results of density functional theory (DFT) calculations on SmO(-), SmCeOy(-), and Sm2Oy(-) (y = 1, 2) are reported and compared to previous results on CeO(-) [M. Ray et al., J. Chem. Phys. 142, 064305 (2015)] and Ce2Oy(-) (y = 1, 2) [J. O. Kafader et al., J. Chem. Phys. 145, 154306 (2016)]. Similar to the results on CexOy(-) clusters, the PE spectra of SmO(-), SmCeOy(-), and Sm2Oy(-) (y = 1, 2) all exhibit electronic transitions to the neutral ground state at approximately 1 eV e(-)BE...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28513578/crystal-structure-of-a-multi-domain-human-smoothened-receptor-in-complex-with-a-super-stabilizing-ligand
#3
Xianjun Zhang, Fei Zhao, Yiran Wu, Jun Yang, Gye Won Han, Suwen Zhao, Andrii Ishchenko, Lintao Ye, Xi Lin, Kang Ding, Venkatasubramanian Dharmarajan, Patrick R Griffin, Cornelius Gati, Garrett Nelson, Mark S Hunter, Michael A Hanson, Vadim Cherezov, Raymond C Stevens, Wenfu Tan, Houchao Tao, Fei Xu
The Smoothened receptor (SMO) belongs to the Class Frizzled of the G protein-coupled receptor (GPCR) superfamily, constituting a key component of the Hedgehog signalling pathway. Here we report the crystal structure of the multi-domain human SMO, bound and stabilized by a designed tool ligand TC114, using an X-ray free-electron laser source at 2.9 Å. The structure reveals a precise arrangement of three distinct domains: a seven-transmembrane helices domain (TMD), a hinge domain (HD) and an intact extracellular cysteine-rich domain (CRD)...
May 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28512846/melatonin-influences-the-sonic-hedgehog-signaling-pathway-in-porcine-cumulus-oocyte-complexes
#4
Sanghoon Lee, Jun-Xue Jin, Anukul Taweechaipaisankul, Geon A Kim, Curie Ahn, Byeong Chun Lee
Melatonin, which is synthesized in the pineal gland and peripheral reproductive organs, has antioxidant properties and regulates physiological processes. It is well known that melatonin affects in vitro maturation (IVM) of oocytes and embryonic development in many species. However, beneficial effects of melatonin on IVM have been explained mainly by indirect antioxidant effects and little information is available on the underlying mechanism by which melatonin directly acts on porcine cumulus oocyte complexes (COCs)...
May 17, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28507311/disruption-of-shh-signaling-cascade-by-sbe-attenuates-lung-cancer-progression-and-sensitizes-ddp-treatment
#5
Jing Du, Weiwei Chen, Lijuan Yang, Juanjuan Dai, Jiwei Guo, Yan Wu, Kaikai Gong, Jian Zhang, Ning Yu, Zhen Xie, Sichuan Xi
Deregulated Sonic Hedgehog (SHH) pathway facilitates the initiation, progression, and metastasis of Non-small cell lung cancer (NSCLC), confers drug resistance and renders a therapeutic interference option to lung cancer patients with poor prognosis. In this study, we screened and evaluated the specificity of a Chinese herb Scutellariabarbata D. Don extraction (SBE) in repressing SHH signaling pathway to block NSCLC progression. Our study confirmed that aberrant activation of the SHH signal pathway conferred more proliferative and invasive phenotypes to human lung cancer cells...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28492486/a-human-activity-recognition-system-based-on-dynamic-clustering-of-skeleton-data
#6
Alessandro Manzi, Paolo Dario, Filippo Cavallo
Human activity recognition is an important area in computer vision, with its wide range of applications including ambient assisted living. In this paper, an activity recognition system based on skeleton data extracted from a depth camera is presented. The system makes use of machine learning techniques to classify the actions that are described with a set of a few basic postures. The training phase creates several models related to the number of clustered postures by means of a multiclass Support Vector Machine (SVM), trained with Sequential Minimal Optimization (SMO)...
May 11, 2017: Sensors
https://www.readbyqxmd.com/read/28490735/design-synthesis-and-biological-evaluation-of-novel-hedgehog-inhibitors-for-treating-pancreatic-cancer
#7
Vinod Kumar, Amit Kumar Chaudhary, Yuxiang Dong, Haizhen A Zhong, Goutam Mondal, Feng Lin, Virender Kumar, Ram I Mahato
Hedgehog (Hh) pathway is involved in epithelial-mesenchymal transition (EMT) and cancer stem cell (CSC) maintenance resulting in tumor progression. GDC-0449, an inhibitor of Hh pathway component smoothened (Smo) has shown promise in the treatment of various cancers including pancreatic cancer. However, the emergence of resistance during GDC-0449 treatment with numerous side effects limits its use. Therefore, here we report the design, synthesis and evaluation of novel GDC-0449 analogs using N-[3-(2-pyridinyl) phenyl] benzamide scaffold...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28487292/gli3-repressor-determines-hedgehog-pathway-activation-and-is-required-for-response-to-smo-antagonist-glasdegib-in-aml
#8
Parvesh Chaudhry, Mohan Singh, Timothy J Triche, Monica Guzman, Akil A Merchant
The Hedgehog (Hh) signaling pathway is activated in many cancers and is a promising target for therapeutic development. Deletions in the receptor Patched (PTCH) or activating mutations in Smoothened (SMO) have been reported in basal cell carcinoma (BCC) and medulloblastoma, but are largely absent in most tumor types; therefore, the mechanism of pathway activation in most cancers, including hematological malignancies, remains unknown. In normal tissues, Hh pathway activation via PTCH/SMO causes an increase in the downstream transcriptional activator GLI1 and a decrease in the transcriptional repressor GLI3R...
May 9, 2017: Blood
https://www.readbyqxmd.com/read/28487226/oncogenic-function-of-tusc3-in-non-small-cell-lung-cancer-is-associated-with-hedgehog-signalling-pathway
#9
Ye Gu, Xiaojuan Pei, Yansong Ren, Kaican Cai, Kang Guo, Jiaye Chen, Weizhao Qin, Mingdao Lin, Qian Wang, Na Tang, Zhiqiang Cheng, Yanqing Ding, Jie Lin
Non-small cell lung cancer (NSCLC) represents 75-80% of all lung carcinomas, which is the most common cause of death from cancer. Tumour suppressor candidate 3 (TUSC3) is pivotal in many biochemical functions and cytological processes. Dis-regulation of TUSC3 is frequently observed in epithelial cancers. In this study, we observed up-regulated TUSC3 expression at the mRNA and protein levels in clinical NSCLC samples compared with adjacent non-tumorous lung tissues. The expression level of TUSC3 is significantly correlated with tumour metastasis and patient survival...
May 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28485896/shh-signalling-mediates-astrocyte-crosstalk-with-neurons-to-confer-neuroprotection
#10
Christopher I Ugbode, Imogen Smith, Benjamin J Whalley, Warren D Hirst, Marcus Rattray
Sonic Hedgehog (SHH) is a glycoprotein associated with development that is also expressed in the adult CNS and released after brain injury. Since the SHH receptors PTCH1 (patched homolog-1) and SMO (Smoothened) are highly expressed on astrocytes, we hypothesised that SHH regulates astrocyte function. Primary mouse cortical astrocytes derived from embryonic (E15) Swiss mouse cortices, were treated with two chemically distinct agonists of the SHH pathway, which caused astrocytes to elongate and proliferate. These changes are accompanied by decreases in the major astrocyte glutamate transporter, GLT-1 and the astrocyte intermediate filament protein GFAP...
May 9, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28484168/current-diagnosis-and-treatment-for-acute-myeloid-leukemia
#11
Yukio Kobayashi
Genomic studies of acute myeloid leukemia have been extensively in progress. In patients with therapy-related myeloid neoplasms, peripheral blood before chemotherapy was found to have a minute clone with mutated oncogenes and tumor suppressor genes. Patients who were in complete remission showed a fraction of mutated genes. This status involves clonal hematopoiesis of indeterminate potential and demonstrates that a fraction of cells with mutated genes cannot result in leukemia. Regarding treatment, the results of two phase 3 studies have shown efficacy; midostaurin is effective in combination with the standard 7+3 therapy, and another mixed compound comprising micellized cytarabine and daunorubicin at a mixing molar ratio of 5 : 1 is more effective than the standard 7+3 therapy...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28482067/frequent-akt1e17k-mutations-in-skull-base-meningiomas-are-associated-with-mtor-and-erk1-2-activation-and-reduced-time-to-tumor-recurrence
#12
Ümmügülsüm Yesilöz, Elmar Kirches, Christian Hartmann, Johannes Scholz, Siegfried Kropf, Felix Sahm, Makoto Nakamura, Christian Mawrin
Background.: Skull base meningiomas are considered to be difficult for surgical treatment. We wondered whether genetic alterations recently identified in benign non-NF2-mutated World Health Organization (WHO) grade I meningiomas are related to clinical features of skull base meningiomas and whether druggable signaling pathways are activated. Methods.: We analyzed 93 skull base meningiomas (82 WHO grade I, 11 WHO grade II) for mutations of hot spots or the most relevant exons of AKT1, KLF4/TRAF7, SMO, PI3K, and the TERT promoter...
May 6, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28459465/intu-is-essential-for-oncogenic-hh-signaling-through-regulating-primary-cilia-formation-in-basal-cell-carcinoma
#13
N Yang, E L-H Leung, C Liu, L Li, T Eguether, X-J Jun Yao, E C Jones, D A Norris, A Liu, R A Clark, D R Roop, G J Pazour, K R Shroyer, J Chen
Inturned (INTU), a cilia and planar polarity effector, performs prominent ciliogenic functions during morphogenesis, such as in the skin. INTU is expressed in adult tissues but its role in tissue maintenance is unknown. Here, we report that the expression of the INTU gene is aberrantly elevated in human basal cell carcinoma (BCC), coinciding with increased primary cilia formation and activated hedgehog (Hh) signaling. Disrupting Intu in an oncogenic mutant Smo (SmoM2)-driven BCC mouse model prevented the formation of BCC through suppressing primary cilia formation and Hh signaling, suggesting that Intu performs a permissive role during BCC formation...
May 1, 2017: Oncogene
https://www.readbyqxmd.com/read/28458545/role-of-hedgehog-gli1-signaling-in-the-enhanced-proliferation-and-differentiation-of-mg63-cells-enabled-by-hierarchical-micro-nanotextured-topography
#14
Yao Lin, Yinghe Huang, Junbing He, Feng Chen, Yanfang He, Wenying Zhang
Hedgehog-Gli1 signaling is evolutionarily conserved and plays an essential role in osteoblast proliferation and differentiation as well as bone formation. To evaluate the role of the Hedgehog-Gli1 pathway in the response of osteoblasts to hierarchical biomaterial topographies, human MG63 osteoblasts were seeded onto smooth, microstructured, and micro-/nanotextured topography (MNT) titanium to assess osteoblast proliferation and differentiation in terms of proliferative activity, alkaline phosphatase (ALP) production, and osteogenesis-related gene expression...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28451928/a-comparison-of-the-bariatric-procedures-that-are-performed-in-the-treatment-of-super-morbid-obesity
#15
Kohei Uno, Yosuke Seki, Kazunori Kasama, Kotaro Wakamatsu, Akiko Umezawa, Katsuhiko Yanaga, Yoshimochi Kurokawa
BACKGROUND: We have experienced numerous cases of super morbid obesity (SMO), defined by a BMI of ≥50 kg/m(2), in which laparoscopic sleeve gastrectomy (LSG) was not able to achieve a sufficient weight loss effect. However, the most appropriate procedure for the treatment of SMO has not yet been established. METHODS: The subjects included 248 successive patients who underwent surgery at our hospital from June 2006 to December 2012. We divided the subjects into an SMO group (BMI, 50 to <70 kg/m(2)) and a morbid obesity (MO) group (BMI, 35 to <50 kg/m(2))...
April 27, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28446466/landscape-of-combination-immunotherapy-and-targeted-therapy-to-improve-cancer-management
#16
Leandro M Colli, Mitchell J Machiela, Han Zhang, Timothy Myers, Lea Jessop, Olivier Delattre, Kai Yu, Stephen J Chanock
Cancer treatments composed of immune checkpoint inhibitors and oncogene-targeted drugs might improve cancer management, but there has been little investigation of their combined potential as yet. To estimate the fraction of cancer cases that might benefit from such combination therapy, we conducted an exploratory study of cancer genomic data sets to determine the proportion with somatic mutation profiles amenable to either immunotherapy or targeted therapy. We surveyed 13,349 genomic profiles from public databases for cases with specific mutations targeted by current agents or a burden of exome-wide non-synonymous mutations (NsM) that exceeds a proposed threshold for response to checkpoint inhibitors...
April 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/28446294/-effect-of-hedgehog-signaling-pathway-abnormality-on-chemothe-rapeutic-resistance-of-multiple-myeloma
#17
Jia-Sheng Hu, Xiao Huang, Ying-Dan Huang, Yan-Yan Lu, Quan-Yi Lu
OBJECTIVE: To study the correlation between the excessive activation of Hedgehog signal and the drug resistance of multiple myeloma. METHODS: The resistant cell line RPMI 8226/R of multiple myeloma was established by an ascending concentration gradient method. The experiment consisted of 4 groups: RPMI8226/R, RPMI8226/S, GANT61+RPMI8226/R and GANT61+RPMI8226/S. The CCK-8 (cell counting kit-8) assay was used to detect the cell proliferation inhibition rate in 4 groups; the RT-PCR was used to detect the expression of Gli1, Gli2, Shh, Ihh, Smo and Sufu in the RPMI8226/S and RPMI8226/R cells...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28441382/hedgehog-signalling-pathway-orchestrates-angiogenesis-in-triple-negative-breast-cancers
#18
Concetta Di Mauro, Roberta Rosa, Valentina D'Amato, Paola Ciciola, Alberto Servetto, Roberta Marciano, Roberta Clara Orsini, Luigi Formisano, Sandro De Falco, Valeria Cicatiello, Maurizio Di Bonito, Monica Cantile, Francesca Collina, Angela Chambery, Bianca Maria Veneziani, Sabino De Placido, Roberto Bianco
BACKGROUND: Several evidences suggest a marked angiogenic dependency in triple-negative breast cancer (TNBC) tumorigenesis and a potential sensitivity to anti-angiogenic agents. Herein, the putative role of Hedgehog (Hh) pathway in regulating TNBC-dependent angiogenesis was investigated. METHODS: Expression and regulation of the Hh pathway transcription factor glioma-associated oncogene homolog1 protein (GLI1) were studied on the endothelial compartment and on TNBC-initiated angiogenesis...
May 23, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28435958/potential-energy-surface-for-the-reaction-sm-co2-%C3%A2-smo-co-guided-ion-beam-and-theoretical-studies
#19
P B Armentrout, Richard M Cox
The potential energy surface (PES) for the oxidation of samarium cations by carbon dioxide is explored both experimentally and theoretically. Using guided ion beam tandem mass spectrometry, several reactions are examined as a function of kinetic energy. These include the title reaction as well as its reverse along with the collision-induced dissociation of Sm(+)(CO2) and OSm(+)(CO) with Xe. Analysis of the kinetic energy dependent cross sections yields barriers for the forward and reverse oxidation reaction of 1...
April 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28417299/negative-prognostic-effect-of-low-nuclear-gli1-expression-in-glioblastomas
#20
Yuil Kim, In-Gu Do, Mineui Hong, Yeon-Lim Suh
The hedgehog signaling plays supportive roles in various aspects of tumorigenesis. Increased expression of the key component, GLI1, has been shown to correlate with poor prognosis in many types of cancers. We aimed to investigate the effect of GLI1 expression in glioblastoma focusing on the nuclear localization. Immunohistochemistry for GLI1, GLI2, PTCH1, SMO, and SHH were done in 140 glioblastoma tissues, and the staining was graded. For GLI1, nuclear and cytoplasmic expression was separately assessed. No significant correlation was found between clinicopathologic parameters and expression grades of the five proteins...
April 17, 2017: Journal of Neuro-oncology
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