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https://www.readbyqxmd.com/read/29331585/cathepsin-l-promotes-ionizing-radiation-induced-u251-glioma-cell-migration-and-invasion-through-regulating-the-gsk-3%C3%AE-cux1-pathway
#1
Yao Fei, Yajie Xiong, Xiao Shen, Yifan Zhao, Ying Zhu, Long Wang, Zhongqin Liang
Cathepsin L (CTSL) is a lysosomal cysteine protease overexpressed and secreted by tumor cells. Our previous study found that CTSL was involved in ionizing radiation (IR)-induced epithelial-mesenchymal transition (EMT) and the increase of glioma invasion and migration. However, the mechanisms by which CTSL promoted this IR-induced glioma migration and invasion remained unclear. In this study, we demonstrated that IR reduced glycogen synthase kinase-3β (GSK-3β) activity, via the CTSL-mediated phosphorylation of its serine-9 residue, in U251 cells...
January 10, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29331582/inositol-polyphosphates-contribute-to-cellular-circadian-rhythms-implications-for-understanding-lithium-s-molecular-mechanism
#2
Heather Wei, Dominic Landgraf, George Wang, Michael J McCarthy
Most living organisms maintain cell autonomous circadian clocks that synchronize critical biological functions with daily environmental cycles. In mammals, the circadian clock is regulated by inputs from signaling pathways including glycogen synthase kinase 3 (GSK3). The drug lithium has actions on GSK3, and also on inositol metabolism. While it is suspected that lithium's inhibition of GSK3 causes rhythm changes, it is not known if inositol polyphosphates can also affect the circadian clock. We examined whether the signaling molecule inositol hexaphosphate (IP6) has effects on circadian rhythms...
January 10, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29331577/a-novel-encystation-specific-protein-kinase-regulates-chitin-synthesis-in-entamoeba-invadens
#3
Sintu Kumar Samanta, Sneha Susan Varghese, Deepak Krishnan, Mithu Baidya, Digant Nayak, Sumanta Mukherjee, Sudip K Ghosh
Phosphorylation is an important post-translational modification of proteins and is involved in the regulation of a variety of cellular events. The proteome of Entamoeba invadens, the reptilian counterpart of Entamoeba histolytica consists of an overwhelming number of putative protein kinases, and some may have a role to play in Entamoeba encystation. In this study, we have identified a novel protein kinase named as EiCSpk (Entamoeba invadenscyst specific protein kinase) which expressed almost exclusively during encystation...
January 10, 2018: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/29331511/maresin-1-regulates-autophagy-and-inflammation-in-human-periodontal-ligament-cells-through-glycogen-synthase-kinase-3%C3%AE-%C3%AE-catenin-pathway-under-inflammatory-conditions
#4
Li Du, Yucheng Li, Weifeng Liu
OBJECTIVE: Accumulating lines of evidence suggest that maresin 1 (MaR-1) exerts anti-inflammatory effects in many cell types and plays beneficial roles in inflammatory disease, such as peritonitis and colitis. Moreover, it has been demonstrated that MaR-1 play protective roles against localized aggressive periodontitis. However, the function and mechanism of MaR-1 in human periodontal ligament cells (PDL) cells from periodontitis are poorly understood. The present study aimed to clarify the effects and molecular mechanism of MaR-1 in PDL cell survival and inflammation...
December 23, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29330710/glycogen-production-in-marine-cyanobacterial-strain-synechococcus-sp-nkbg-15041c
#5
Amr Badary, Shouhei Takamatsu, Mitsuharu Nakajima, Stefano Ferri, Peter Lindblad, Koji Sode
An important feature offered by marine cyanobacterial strains over freshwater strains is the capacity to grow in seawater, replacing the need for often-limited freshwater. However, there are only limited numbers of marine cyanobacteria that are available for genetic manipulation and bioprocess applications. The marine unicellular cyanobacteria Synechococcus sp. strain NKBG 15041c (NKBG15041c) has been extensively studied. Recombinant DNA technologies are available for this strain, and its genomic information has been elucidated...
January 12, 2018: Marine Biotechnology
https://www.readbyqxmd.com/read/29330356/metabolic-and-molecular-changes-associated-with-the-increased-skeletal-muscle-insulin-action-24-48%C3%A2-h-after-exercise-in-young-and-old-humans
#6
REVIEW
Francis B Stephens, Kostas Tsintzas
The molecular and metabolic mechanisms underlying the increase in insulin sensitivity (i.e. increased insulin-stimulated skeletal muscle glucose uptake, phosphorylation and storage as glycogen) observed from 12 to 48 h following a single bout of exercise in humans remain unresolved. Moreover, whether these mechanisms differ with age is unclear. It is well established that a single bout of exercise increases the translocation of the glucose transporter, GLUT4, to the plasma membrane. Previous research using unilateral limb muscle contraction models in combination with hyperinsulinaemia has demonstrated that the increase in insulin sensitivity and glycogen synthesis 24 h after exercise is also associated with an increase in hexokinase II (HKII) mRNA and protein content, suggesting an increase in the capacity of the muscle to phosphorylate glucose and divert it towards glycogen synthesis...
January 12, 2018: Biochemical Society Transactions
https://www.readbyqxmd.com/read/29329433/rage-mediates-a%C3%AE-accumulation-in-a-mouse-model-of-alzheimer-s-disease-via-modulation-of-%C3%AE-and-%C3%AE-secretase-activity
#7
Fang Fang, Qing Yu, Ottavio Arancio, Doris Chen, Smruti S Gore, Shi Fang Yan, Shirley ShiDu Yan
Receptor for Advanced Glycation End products (RAGE) has been implicated in amyloid β-peptide (Aβ)-induced perturbation relevant to the pathogenesis of Alzheimer's disease (AD). However, whether and how RAGE regulates Aβ metabolism remains largely unknown. Aβ formation arises from aberrant cleavage of amyloid precursor protein (APP) by β- and γ-secretase. To investigate whether RAGE modulates β- and γ-secretase activity potentiating Aβ formation, we generated mAPP mice with genetic deletion of RAGE (mAPP/RO)...
January 10, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29328365/nuclear-gsk3%C3%AE-induces-dna-double-strand-break-repair-by-phosphorylating-53bp1-in-glioblastoma
#8
Yong Yang, Tiantian Lei, Suya Du, Rongsheng Tong, Hailian Wang, Jiao Yang, Juan Huang, Minghan Sun, Yi Wang, Zhi Dong
Glioblastoma is the most malignant and lethal subtype brain tumors with high risk of recurrence and therapeutic resistance. Emerging evidence has indicated that glycogen synthesis kinase 3 (GSK3)β plays oncogenic roles in multiple tumor types; however, the underlying mechanisms remain largely unknown. It has also been demonstrated that p53 binding protein 1 (53BP1) plays a central role in DNA double-strand break (DSB) repair. This study aimed to reveal the significance of GSK3β translocation from the cytoplasm to the nucleus, and to determine whether GSK3β induces DNA DSB repair in the nuclei of glioblastoma cells via phospho-53BP1...
January 4, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29327199/glycogen-synthase-kinase-3%C3%AE-regulates-equilibrium-between-neurogenesis-and-gliogenesis-in-rat-model-of-parkinson-s-disease-a-crosstalk-with-wnt-and-notch-signaling
#9
Sonu Singh, Akanksha Mishra, Sachi Bharti, Virendra Tiwari, Jitendra Singh, Parul, Shubha Shukla
Neurogenesis involves generation of functional newborn neurons from neural stem cells (NSCs). Insufficient formation or accelerated degeneration of newborn neurons may contribute to the severity of motor/nonmotor symptoms of Parkinson's disease (PD). However, the functional role of adult neurogenesis in PD is yet not explored and whether glycogen synthase kinase-3β (GSK-3β) affects multiple steps of adult neurogenesis in PD is still unknown. We investigated the possible underlying molecular mechanism of impaired adult neurogenesis associated with PD...
January 11, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29326002/prevalence-of-adult-pompe-disease-in-patients-with-proximal-myopathic-syndrome-and-undiagnosed-muscle-biopsy
#10
Amir Golsari, Arzoo Nasimzadah, Götz Thomalla, Sarah Keller, Christian Gerloff, Tim Magnus
We examined patients with limb-girdle muscle weakness and/or hyper-CKaemia and undiagnosed muscle biopsy for late onset Pompe disease (LOPD). Patients with an inconclusive limb-girdle muscle weakness who presented at our neuromuscular centre between 2005 and 2015 with undiagnosed muscle biopsies were examined by dry blood spot testing (DBS) including determination of the enzyme activity of acid alpha-glucosidase (GAA). In the case of depressed enzyme activity, additional gene testing of the GAA gene was carried out...
December 7, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29325988/arboriscoccus-pini-gen-nov-sp-nov-an-endophyte-from-a-pine-tree-of-the-class-alphaproteobacteria-emended-description-of-geminicoccus-roseus-and-proposal-of-geminicoccaceae-fam-nov
#11
Diogo N Proença, William B Whitman, Neha Varghese, Nicole Shapiro, Tanja Woyke, Nikos C Kyrpides, Paula V Morais
Bacterial strain B29T1T was isolated from the endophytic microbial community of a Pinus pinaster tree trunk and characterized. Strain B29T1T stained Gram-negative and formed diplococci that grew optimally at 26-30°C and at pH 6.0-7.0. The G+C content of the DNA was 61.6mol%. The respiratory quinone was ubiquinone 10 (UK-10), and the major fatty acids were C16:0, cyclo-C19:0ω8c and C18:0 12-methyl, representing 64% of the total fatty acids. Phylogenetic analyses based on the 16S rRNA gene sequences placed strain B29T1T within the order Rhodospirillales in a distinct lineage that also included the genus Geminicoccus...
December 22, 2017: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/29325298/-a-case-of-glycogen-storage-disease-type-ii-and-related-analysis
#12
J M Han, L Y Zhang, L Sun, Y Lu, M H Li
No abstract text is available yet for this article.
December 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29323740/long-non-coding-rna-asbel-promotes-osteosarcoma-cell-proliferation-migration-and-invasion-by-regulating-microrna-21
#13
Jianhui Zhao, Zhongli Gao, Chao Zhang, Han Wu, Rui Gu, Rui Jiang
Osteosarcoma is the most common malignant bone tumor in children and adolescents with high rate of incidence, high frequency of recurrence and high degree of metastasis. This study aimed to investigate the effects of long noncoding RNA antisense ncRNA in the Abundant in neuroepithelium area (ANA)/B-cell translocation gene 3 (BTG3) locus (lncRNA ASBEL) on the pathogenesis of osteosarcoma. The expression levels of ASBEL in human osteoblast cells and human osteosarcoma cells were evaluated using qRT-PCR. Effects of ASBEL knockdown on cell viability, migration and invasion were detected using trypan blue exclusion assay, cell migration and invasion assay, respectively...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29323287/disposition-of-a-glucose-load-into-hepatic-glycogen-by-direct-and-indirect-pathways-in-juvenile-seabass-and-seabream
#14
João Rito, Ivan Viegas, Miguel A Pardal, Isidoro Metón, Isabel V Baanante, John G Jones
In carnivorous fish, conversion of a glucose load to hepatic glycogen is widely used to assess their metabolic flexibility towards carbohydrate utilization, but the activities of direct and indirect pathways in this setting are unclear. We assessed the conversion of an intraperitoneal glucose load (2 g.kg-1) enriched with [U-13C6]glucose to hepatic glycogen in juvenile seabass and seabream. 13C-NMR analysis of glycogen was used to determine the contribution of the load to glycogen synthesis via direct and indirect pathways at 48-hr post-injection...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322369/proteomic-and-metabolomic-analysis-of-marine-medaka-oryzias-melastigma-after-acute-ammonia-exposure
#15
Limei Zhu, Na Gao, Ruifang Wang, Li Zhang
Ammonia is both a highly toxic environmental pollutant and the major nitrogenous waste produced by ammoniotelic teleosts. Although the acute toxic effects of ammonia have been widely studied in fish, the biochemical mechanisms of its toxicity have not been understood comprehensively. In this study, we performed comparative proteomic and metabolomic analysis between ammonia-challenged (1.2 and 2.6 mmol L-1 NH4Cl for 96 h) and control groups of marine medaka (Oryzias melastigma) to identify changes of the metabolite and protein profiles in response to ammonia stress...
January 10, 2018: Ecotoxicology
https://www.readbyqxmd.com/read/29321828/exendin-4-protects-mice-from-d-galactose-induced-hepatic-and-pancreatic-dysfunction
#16
Akram Ahangarpour, Ali Akbar Oroojan, Mohammad Badavi
Investigations into pharmaceutical intervention of pancreatic and hepatic dysfunction associated with metabolic disturbances have received relatively little attention. The aim of this study was to investigate the protective effects of exendin-4 in mice receiving D-galactose, a reducing sugar that triggers ROS production and inflammatory mediators affecting the pancreas and liver. Exendin-4 is an United States Food and Drug Administration (FDA) approved glucagon-like peptide that increases insulin dependent glycogen synthesis and glucose uptake...
2018: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/29321682/intermittent-metabolic-switching-neuroplasticity-and-brain-health
#17
REVIEW
Mark P Mattson, Keelin Moehl, Nathaniel Ghena, Maggie Schmaedick, Aiwu Cheng
During evolution, individuals whose brains and bodies functioned well in a fasted state were successful in acquiring food, enabling their survival and reproduction. With fasting and extended exercise, liver glycogen stores are depleted and ketones are produced from adipose-cell-derived fatty acids. This metabolic switch in cellular fuel source is accompanied by cellular and molecular adaptations of neural networks in the brain that enhance their functionality and bolster their resistance to stress, injury and disease...
January 11, 2018: Nature Reviews. Neuroscience
https://www.readbyqxmd.com/read/29319206/butyl-paraben-promotes-apoptosis-in-human-trophoblast-cells-through-increased-oxidative-stress-induced-endoplasmic-reticulum-stress
#18
Changwon Yang, Whasun Lim, Fuller W Bazer, Gwonhwa Song
Butyl paraben (BP) has antimicrobial effects and is widely used as a preservative in cosmetics, foods, and pharmaceuticals. It is also absorbed into various tissues of the human body. It is known that BP is measurable in maternal and fetal tissues during pregnancy, but the effects of BP on placental development, essential for maintaining normal pregnancy, are unclear. Therefore, we investigated the effect of BP on the proliferation, apoptosis, and invasiveness of human trophoblast cells, using an HTR8/SVneo cell line...
January 10, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29318410/flux-analysis-of-inborn-errors-of-metabolism
#19
D-J Reijngoud
Patients with an inborn error of metabolism (IEM) are deficient of an enzyme involved in metabolism, and as a consequence metabolism reprograms itself to reach a new steady state. This new steady state underlies the clinical phenotype associated with the deficiency. Hence, we need to know the flux of metabolites through the different metabolic pathways in this new steady state of the reprogrammed metabolism. Stable isotope technology is best suited to study this. In this review the progress made in characterizing the altered metabolism will be presented...
January 9, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29316381/rapid-intra-operative-diagnosis-of-kidney-cancer-by-atr-ir-spectroscopy-of-tissue-smears
#20
Milda Pucetaite, Martynas Velicka, Vidita Urboniene, Justinas Ceponkus, Rimante Bandzeviciute, Feliksas Jankevicius, Arunas Zelvys, Valdas Sablinskas, Gerald Steiner
Herein, a technique to analyze air-dried kidney tissue impression smears by means of Attenuated Total Reflection Infrared (ATR-IR) spectroscopy is presented. Spectral tumor markers - absorption bands of glycogen - are identified in the ATR-IR spectra of the kidney tissue smear samples. Thin kidney tissue cryo-sections currently used for IR spectroscopic analysis lack such spectral markers as the sample preparation causes irreversible molecular changes in the tissue. In particular, freeze-thaw cycle results in degradation of the glycogen and reduction or complete dissolution of its content...
January 9, 2018: Journal of Biophotonics
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