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Casein kinase 2

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https://www.readbyqxmd.com/read/28798693/phosphorylation-modulates-ameloblastin-self-assembly-and-ca-2-binding
#1
Øystein Stakkestad, Ståle P Lyngstadaas, Bernd Thiede, Jiri Vondrasek, Bjørn S Skålhegg, Janne E Reseland
Ameloblastin (AMBN), an important component of the self-assembled enamel extra cellular matrix, contains several in silico predicted phosphorylation sites. However, to what extent these sites actually are phosphorylated and the possible effects of such post-translational modifications are still largely unknown. Here we report on in vitro experiments aimed at investigating what sites in AMBN are phosphorylated by casein kinase 2 (CK2) and protein kinase A (PKA) and the impact such phosphorylation has on self-assembly and calcium binding...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28793293/triggering-of-eryptosis-the-suicidal-erythrocyte-death-by-mammalian-target-of-rapamycin-mtor-inhibitor-temsirolimus
#2
Abdulla Al Mamun Bhuyan, Hang Cao, Florian Lang
BACKGROUND/AIMS: The mammalian target of rapamycin (mTOR) inhibitor temsirolimus is utilized for the treatment of malignancy. Temsirolimus is at least in part effective by triggering suicidal tumor cell death. The most common side effect of temsirolimus treatment is anemia. At least in theory, the anemia following temsirolimus treatment could result from stimulation of eryptosis, the suicidal erythrocyte death. Hallmarks of eryptosis include cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface...
July 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28791381/protective-effect-of-diminazene-attenuates-myocardial-infarction-in-rats-via-increased-inflammation-and-ace2-activity
#3
Junjiang Chen, Lianqun Cui, Jingliang Yuan, Songcun Zhang, Rongmei Ma, Hongjun Sang, Qingjiang Liu, Lianfeng Shan
The present study aimed to investigate whether diminazene attenuates myocardial infarction (MI) in rats. In addition, the present study investigated whether ACE2 signaling was involved in the effects of diminazene on protein function. A rat model of acute myocardial infarction (AMI) was established by occlusion of the left anterior descending coronary artery. The AMI model rats received intraperitoneal injections of diminazene (5 mg/kg/day) for 3 days. Treatment with diminazene significantly inhibited the expression of casein kinase and lactate dehydrogenase, and reduced infarct size in AMI rats...
August 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28774478/putting-glioblastoma-in-its-place-irf3-inhibits-invasion
#4
Siobhan S Pattwell, Eric C Holland
With an unsurpassed capacity for invasion into normal brain tissue, glioblastoma multiforme is the most lethal primary brain tumor. New research suggests that altering a subset of extracellular matrix factors, including interferon regulatory factor (IRF)3 and casein kinase (CK)2, may decrease the migratory potential of these aggressive tumors.
July 31, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28751212/identification-of-three-signaling-molecules-required-for-calcineurin-dependent-monopolar-growth-induced-by-the-dna-replication-checkpoint-in-fission-yeast
#5
Kazunori Kume, Tomoyo Hashimoto, Masashi Suzuki, Masaki Mizunuma, Takashi Toda, Dai Hirata
Cell polarity is coordinately regulated with the cell cycle. Growth polarity of the fission yeast Schizosaccharomyces pombe transits from monopolar to bipolar during G2 phase, termed NETO (new end take off). Upon perturbation of DNA replication, the checkpoint kinase Cds1/CHK2 induces NETO delay through activation of Ca(2+)/calmodulin-dependent protein phosphatase calcineurin (CN). CN in turn regulates its downstream targets including the microtubule (MT) plus-end tracking CLIP170 homologue Tip1 and the Casein kinase 1γ Cki3...
July 24, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28748912/a-novel-allosteric-site-in-casein-kinase-2%C3%AE-discovered-using-combining-bioinformatics-and-biochemistry-methods
#6
Hai-Ming Jiang, Jiang-Kai Dong, Kun Song, Tong-Dan Wang, Wen-Kang Huang, Jing-Miao Zhang, Xiu-Yan Yang, Ying Shen, Jian Zhang
Casein kinase 2 (CK2) is a highly pleiotropic serine-threonine kinase, which catalyzed phosphorylation of more than 300 proteins that are implicated in regulation of many cellular functions, such as signal transduction, transcriptional control, apoptosis and the cell cycle. On the other hand, CK2 is abnormally elevated in a variety of tumors, and is considered as a promising therapeutic target. The currently available ATP-competitive CK2 inhibitors, however, lack selectivity, which has impeded their development in cancer therapy...
July 27, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28698370/g9a-coordinates-with-the-rpa-complex-to-promote-dna-damage-repair-and-cell-survival
#7
Qiaoyan Yang, Qian Zhu, Xiaopeng Lu, Yipeng Du, Linlin Cao, Changchun Shen, Tianyun Hou, Meiting Li, Zhiming Li, Chaohua Liu, Di Wu, Xingzhi Xu, Lina Wang, Haiying Wang, Ying Zhao, Yang Yang, Wei-Guo Zhu
Histone methyltransferase G9a has critical roles in promoting cancer-cell growth and gene suppression, but whether it is also associated with the DNA damage response is rarely studied. Here, we report that loss of G9a impairs DNA damage repair and enhances the sensitivity of cancer cells to radiation and chemotherapeutics. In response to DNA double-strand breaks (DSBs), G9a is phosphorylated at serine 211 by casein kinase 2 (CK2) and recruited to chromatin. The chromatin-enriched G9a can then directly interact with replication protein A (RPA) and promote loading of the RPA and Rad51 recombinase to DSBs...
July 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28683323/identification-of-a-druggable-pathway-controlling-glioblastoma-invasiveness
#8
Nora Pencheva, Mark C de Gooijer, Daniel J Vis, Lodewyk F A Wessels, Tom Würdinger, Olaf van Tellingen, René Bernards
Diffuse and uncontrollable brain invasion is a hallmark of glioblastoma (GBM), but its mechanism is understood poorly. We developed a 3D ex vivo organotypic model to study GBM invasion. We demonstrate that invading GBM cells upregulate a network of extracellular matrix (ECM) components, including multiple collagens, whose expression correlates strongly with grade and clinical outcome. We identify interferon regulatory factor 3 (IRF3) as a transcriptional repressor of ECM factors and show that IRF3 acts as a suppressor of GBM invasion...
July 5, 2017: Cell Reports
https://www.readbyqxmd.com/read/28647331/combination-of-histidine-lysine-methionine-and-leucine-promotes-%C3%AE-casein-synthesis-via-the-mechanistic-target-of-rapamycin-signaling-pathway-in-bovine-mammary-epithelial-cells
#9
H N Gao, S G Zhao, N Zheng, Y D Zhang, S S Wang, X Q Zhou, J Q Wang
The ratio of different AA in the diets of cows is vital to improve milk protein yield. β-Casein is one of the important milk proteins with high nutritive value. However, the suitable ratio of essential amino acids (EAA) for the expression of β-casein in the immortalized bovine mammary epithelial cell line is not fully characterized. This study employed response surface methodology to determine the optimal ratio of His, Lys, Met, and Leu on β-casein expression level in vitro and clarified the effect of the 4 EAA on β-casein via the mechanistic target of rapamycin (mTOR) signaling pathway...
September 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28636034/upregulation-of-heme-oxygenase-1-mediates-the-anti-inflammatory-activity-of-casein-glycomacropeptide-gmp-hydrolysates-in-lps-stimulated-macrophages
#10
Tiange Li, Xue Cheng, Min Du, Bin Chen, Xueying Mao
Recently, we have shown that casein glycomacropeptide hydrolysates (GHP) exhibit both anti-inflammatory and anti-oxidative activities in vitro. However, whether heme oxygenase-1 (HO-1) is involved in the cytoprotective effect of GHP against the inflammatory status remains unclear. Therefore, we hypothesized that HO-1 is a potential target of GHP, which mediates its anti-inflammatory effect. Here, GHP inhibited the intracellular reactive oxygen species (ROS) accumulation and NADPH oxidase 2 (NOX2) expression and enhanced reduced glutathione (GSH) levels in LPS-stimulated RAW264...
July 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28603902/extracellular-signal-regulated-kinase-5-associates-with-casein-kinase-ii-to-regulate-gpib-ix-mediated-platelet-activation-via-the-pten-pi3k-akt-pathway
#11
Z Cheng, W Gao, X Fan, X Chen, H Mei, J Liu, X Luo, Y Hu
Essentials The mechanisms of extracellular signal-regulated kinase 5 (ERK5) in GPIb-IX signaling are unclear. Function of ERK5 in GPIb-IX was tested using aggregation, western blotting, and mass spectrometry. The protein interacting with ERK5 in human platelets was identified as casein kinase II (CKII). ERK5 associates with CKII to regulate the activation of the PI3K/Akt pathway in GPIb-IX signaling. SUMMARY: Background The platelet glycoprotein (GP) Ib-IX complex plays essential roles in thrombosis and hemostasis...
June 11, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28596474/lenalidomide-increases-human-dendritic-cell-maturation-in-multiple-myeloma-patients-targeting-monocyte-differentiation-and-modulating-mesenchymal-stromal-cell-inhibitory-properties
#12
Federica Costa, Rosanna Vescovini, Marina Bolzoni, Valentina Marchica, Paola Storti, Denise Toscani, Fabrizio Accardi, Laura Notarfranchi, Benedetta Dalla Palma, Cristina Manferdini, Sabrina Manni, Giannalisa Todaro, Gina Lisignoli, Francesco Piazza, Franco Aversa, Nicola Giuliani
The use of Lenalidomide (LEN), to reverse tumor-mediated immune suppression and amplify multiple myeloma-specific immunity is currently being explored. Particularly, LEN effects on dendritic cells (DCs) are still unclear. In this study, we investigated the potential effect of LEN on DC differentiation and activity. DCs were differentiated either from CD14+ cells obtained from patients with multiple myeloma or from a human monocytic cell line.LEN, at the concentration range reached in vivo, significantly increased the median intensity expression of HLA-DR, CD86 and CD209 by DCs derived from both bone marrow and peripheral myeloma monocytes and enhanced the production of Interleukin-8, C-C motif chemokine ligand (CCL) 2, CCL5 and tumor necrosis factor-α...
May 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28594147/casein-kinase-1-epsilon-deletion-increases-mu-opioid-receptor-dependent-behaviors-and-binge-eating1
#13
L R Goldberg, S L Kirkpatrick, N Yazdani, K P Luttik, O A Lacki, R Keith Babbs, D F Jenkins, W Evan Johnson, C D Bryant
Genetic and pharmacological studies indicate that casein kinase 1 epsilon (Csnk1e) contributes to psychostimulant, opioid, and ethanol motivated behaviors. We previously used pharmacological inhibition to demonstrate that Csnk1e negatively regulates the locomotor stimulant properties of opioids and psychostimulants. Here, we tested the hypothesis that Csnk1e negatively regulates opioid and psychostimulant reward using genetic inhibition and the conditioned place preference assay in Csnk1e knockout mice. Similar to pharmacological inhibition, Csnk1e knockout mice showed enhanced opioid-induced locomotor activity with the mu opioid receptor agonist fentanyl (0...
June 8, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28586070/protective-effect-of-diethylcarbamazine-inhibits-nf-%C3%AE%C2%BAb-activation-in-isoproterenol-induced-acute-myocardial-infarction-rat-model-through-the-parp-pathway
#14
Guowei Jia, Ming Zao, Xiaoyu Liu
The present study investigated the protective effect of diethylcarbamazine in inhibiting nuclear factor (NF)-κB activation in isoproterenol‑induced acute myocardial infarction (AMI) rats through the poly ADP ribose polymerase (PARP) pathway. Male albino Wistar rats were injected subcutaneously with isoproterenol (100 mg/kg/day) for 2 days to induce an AMI model. Diethylcarbamazine (50 mg/kg) was administered by gavage for 12 days prior to the isoproterenol-induced AMI. It was noted that diethylcarbamazine significantly inhibited AMI‑induced casein kinase and lactate dehydrogenase levels, and reduced the AMI‑induced wet heart weight to body weight ratio in AMI rats...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28585349/csnk2b-splice-site-mutations-in-patients-cause-intellectual-disability-with-or-without-myoclonic-epilepsy
#15
Karine Poirier, Laurence Hubert, Géraldine Viot, Marlène Rio, Pierre Billuart, Claude Besmond, Thierry Bienvenu
De novo mutations are a frequent cause of disorders related to brain development. We report the results from the screening of two patients diagnosed with intellectual disability (ID) using exome sequencing to identify new causative de novo mutations. Exome sequencing was conducted in two patient-parent trios to identify de novo variants. In silico and expression studies were also performed to evaluate the functional consequences of these variants. The two patients presented developmental delay with minor facial dysmorphy...
August 2017: Human Mutation
https://www.readbyqxmd.com/read/28571942/corrigendum-to-interaction-of-casein-kinase-1-delta-ck1-delta-with-the-light-chain-lc2-of-microtubule-associated-protein-1a-map1a-biochim-biophys-acta-1745-2-2005-196-2006
#16
Sonja Wolff, Zhenyu Xiao, Mathias Wittau, Nadine Süssner, Martin Stöter, Uwe Knippschild
No abstract text is available yet for this article.
June 2, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28550045/pacsin2-accelerates-nephrin-trafficking-and-is-up-regulated-in-diabetic-kidney-disease
#17
Vincent Dumont, Tuomas A Tolvanen, Sara Kuusela, Hong Wang, Tuula A Nyman, Sonja Lindfors, Jukka Tienari, Harry Nisen, Shiro Suetsugu, Markus Plomann, Hiroshi Kawachi, Sanna Lehtonen
Nephrin is a core component of podocyte (glomerular epithelial cell) slit diaphragm and is required for kidney ultrafiltration. Down-regulation or mislocalization of nephrin has been observed in diabetic kidney disease (DKD), characterized by albuminuria. Here, we investigate the role of protein kinase C and casein kinase 2 substrate in neurons 2 (PACSIN2), a regulator of endocytosis and recycling, in the trafficking of nephrin and development of DKD. We observe that PACSIN2 is up-regulated and nephrin mislocalized in podocytes of obese Zucker Diabetic Fatty (ZDF) rats that have altered renal function...
May 26, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28542923/the-polysialic-acid-mimetics-idarubicin-and-irinotecan-stimulate-neuronal-survival-and-neurite-outgrowth-and-signal-via-protein-kinase-c
#18
Gabriele Loers, Steven Astafiev, Yuliya Hapiak, Vedangana Saini, Bibhudatta Mishra, Sheraz Gul, Gurcharan Kaur, Melitta Schachner, Thomas Theis
Polysialic acid (PSA) is a large, negatively charged, linear homopolymer of alpha2-8-linked sialic acid residues. It is generated by two polysialyltransferases and attached to N- and/or O-linked glycans, and its main carrier is the neural cell adhesion molecule (NCAM). PSA controls the development and regeneration of the nervous system by enhancing cell migration, axon pathfinding, synaptic targeting, synaptic plasticity, by regulating the differentiation of progenitor cells and by modulating cell-cell and cell-matrix adhesions...
August 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28542880/suicidal-death-of-erythrocytes-in-cancer-and-its-chemotherapy-a-potential-target-in-the-treatment-of-tumor-associated-anemia
#19
REVIEW
Elisabeth Lang, Rosi Bissinger, Syed M Qadri, Florian Lang
In analogy to apoptosis of nucleated cells, erythrocytes may enter eryptosis characterized by cell shrinkage and cell membrane scrambling. Eryptotic erythrocytes are rapidly cleared from circulating blood and may adhere to the vascular wall. Stimulation of eryptosis thus impairs microcirculation and leads to anemia as soon as the loss of erythrocytes cannot be fully compensated by enhanced erythropoiesis. Signaling stimulating eryptosis includes increase of cytosolic Ca(2+) -activity, ceramide, caspases, calpain, p38-kinase, protein-kinase C, Janus-activated kinase 3, casein-kinase 1α, and cyclin-dependent kinase 4...
May 23, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28535537/triggering-of-suicidal-erythrocyte-death-by-exemestane
#20
Abdulla Al Mamun Bhuyan, Rosi Bissinger, Hang Cao, Florian Lang
BACKGROUND/AIMS: The steroidal aromatase inactivator exemestane blocks estrogen biosynthesis and is thus employed for the prevention and treatment of breast cancer. Exemestane is in part effective by stimulation of suicidal cell death or apoptosis. Side effects of exemestane treatment include anemia. At least in theory, exemestane induced anemia could be secondary to stimulation of suicidal erythrocyte death or eryptosis, characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface...
2017: Cellular Physiology and Biochemistry
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