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Casein kinase 2

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https://www.readbyqxmd.com/read/28212865/casein-kinase-2-interacting-protein-1-regulates-m1-and-m2-inflammatory-macrophage-polarization
#1
Yuhan Chen, Wen Liu, Yiwu Wang, Luo Zhang, Jun Wei, Xueli Zhang, Fuchu He, Lingqiang Zhang
The importance of macrophage plasticity, albeit being discovered recently, has been highlighted in a broad spectrum of biological processes operative in physiological and pathological environments. Macrophage polarized activation and inactivation has profound effects on immune and inflammatory responses with several major pathways being elucidated in the past few years. However, transcriptional regulation mechanisms governing macrophage polarization is still preliminary. In this study, we identify the Casein Kinase 2 Interacting Protein 1 (CKIP-1) as a molecular toggle manipulating macrophage speciation...
February 14, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28196025/autophagy-induced-by-cx-4945-a-casein-kinase-2-inhibitor-enhances-apoptosis-in-pancreatic-cancer-cell-lines
#2
Dae Wook Hwang, Kwang Sup So, Song Cheol Kim, Kwang-Min Park, Young-Joo Lee, Sun-Whe Kim, Chang-Min Choi, Jin Kyung Rho, Yun Jung Choi, Jae Cheol Lee
OBJECTIVES: Pancreatic cancer is the most lethal malignancy with only a few effective chemotherapeutic drugs. Because the inhibition of casein kinase 2 (CK2) has been reported as a novel therapeutic strategy for many cancers, we investigated the effects of CK2 inhibitors in pancreatic cancer cell lines. METHODS: The BxPC3, 8902, Mia PaCa-2 human pancreatic cancer cell lines, and CX-4945, a novel CK2 inhibitor, were used. Autophagy was analyzed by acridine orange staining, fluorescence microscope detection of punctuate patterns of GFP-tagged LC3 and immunoblotting for LC3...
February 14, 2017: Pancreas
https://www.readbyqxmd.com/read/28164251/state-dependent-block-of-voltage-gated-sodium-channels-by-the-casein-kinase-1-inhibitor-ic261
#3
Karl J Föhr, Uwe Knippschild, Anna Herkommer, Michael Fauler, Christian Peifer, Michael Georgieff, Oliver Adolph
Background and Purpose IC261 (3-[(2,4,6-trimethoxyphenyl)methylidenyl]-indolin-2-one) has previously been introduced as an isoform specific inhibitor of casein kinase 1 (CK1) causing cell cycle arrest or cell death of established tumor cell lines. However, it is reasonable to assume that not all antitumor activities of IC261 are mediated by the inhibition of CK1. Meanwhile there is growing evidence that functional voltage-gated sodium channels are also implicated in the progression of tumors as their blockage suppresses tumor migration and invasion of different tumor cell lines...
February 6, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28155653/novel-group-based-qsar-and-combinatorial-design-of-ck-1%C3%AE-inhibitors-as-neuroprotective-agents
#4
Kopal Joshi, Sukriti Goyal, Sonam Grover, Salma Jamal, Aditi Singh, Pawan Dhar, Abhinav Grover
BACKGROUND: Tar DNA binding protein 43 (TDP-43) hyperphosphorylation, caused by Casein kinase 1 (CK-1) protein isoforms, is associated with the onset and progression of Amyotrophic Lateral Sclerosis (ALS). Among the reported isoforms and splice variants of CK-1 protein superfamily, CK-1δ is known to phosphorylate different serine and threonine sites on TDP-43 protein in vitro and thus qualifies as a potential target for ALS treatment. RESULTS: The developed GQSAR (group based quantitative structure activity relationship) model displayed satisfactory statistical parameters for the dataset of experimentally reported N-Benzothiazolyl-2-Phenyl Acetamide derivatives...
December 22, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28130399/constitutive-phosphorylation-of-stat3-by-the-ck2-blnk-cd5-complex
#5
Uri Rozovski, David M Harris, Ping Li, Zhiming Liu, Preetesh Jain, Ivo Veletic, Alessandra Ferrajoli, Jan Burger, Susan O'Brien, Prithviraj Bose, Philip Thompson, Nitin Jain, William Wierda, Michael J Keating, Zeev Estrov
: In chronic lymphocytic leukemia (CLL), STAT3 is constitutively phosphorylated on serine 727 and plays a role in the pathobiology of CLL. However, what induces constitutive phosphorylation of STAT3 is currently unknown. Mass spectrometry was used to identify casein kinase 2 (CK2), a serine/threonine kinase that co-immunoprecipitated with serine phosphorylated STAT3 (pSTAT3). Furthermore, activated CK2 incubated with recombinant STAT3 induced phosphorylation of STAT3 on serine 727. Although STAT3 and CK2 are present in normal B- and T-cells, STAT3 is not constitutively phosphorylated in these cells...
January 27, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28128304/targeting-osteoblastic-casein-kinase-2-interacting-protein-1-to-enhance-smad-dependent-bmp-signaling-and-reverse-bone-formation-reduction-in-glucocorticoid-induced-osteoporosis
#6
Jin Liu, Changwei Lu, Xiaohao Wu, Zongkang Zhang, Jie Li, Baosheng Guo, Defang Li, Chao Liang, Lei Dang, Xiaohua Pan, Songlin Peng, Aiping Lu, Baoting Zhang, Ge Zhang
The underlying mechanism of the reduced bone formation during the development of glucocorticoid-induced osteoporosis (GIO) remains unclear. Here, we found that the highly expressed CKIP-1 together with lowly expressed total and phosphorylated Smad1/5 in bone samples was accompanied by either the reduced serum bone formation markers in GIO patients or the decreased bone formation in GIO mice. In vitro studies showed that the highly expressed CKIP-1 could promote Smad1 ubiquitination to suppress the Smad-dependent BMP signaling and inhibit osteogenic differentiation and mineral deposition in MC3T3-E1 cells during glucocorticoid treatment...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105499/cx4945-suppresses-the-growth-of-castration-resistant-prostate-cancer-cells-by-reducing-ar-v7-expression
#7
Chuangzhong Deng, Jieping Chen, Shengjie Guo, Yanjun Wang, Qianghua Zhou, Zaishang Li, Xingping Yang, Xingsu Yu, Zhenfeng Zhang, Fangjian Zhou, Hui Han, Kai Yao
PURPOSE: The aberrant expression of casein kinase 2 (CK2) has been reported to be involved in the tumorigenesis and progression of prostate cancer. The inhibition of CK2 activity represses androgen-dependent prostate cancer cells by attenuating the androgen receptor (AR) signaling pathway. In this study, we examined the effect of CK2 inhibition in castration-resistant prostate cancer (CRPC) cells, in which AR variants (ARVs) play a predominant role. METHODS: A newly synthetic CK2 selective inhibitor CX4945 was utilized to study the effect of CK2 inhibition in CRPC cells by CCK8 assay and colony formation assay...
January 19, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28098837/casein-glycomacropeptide-hydrolysates-exert-cytoprotective-effect-against-cellular-oxidative-stress-by-up-regulating-ho-1-expression-in-hepg2-cells
#8
Tiange Li, Bin Chen, Min Du, Jiajia Song, Xue Cheng, Xu Wang, Xueying Mao
Oxidative stress is considered as an important mediator in the progression of metabolic disorders. The objective of this study was to investigate the potential hepatoprotective effects and mechanisms of bovine casein glycomacropeptide hydrolysates (GHP) on hydrogen peroxide (H₂O₂)-induced oxidative damage in HepG2 cells. Results showed that GHP significantly blocked H₂O₂-induced intracellular reactive oxygen species (ROS) generation and cell viability reduction in a dose-dependent manner. Further, GHP concentration-dependently induced heme oxygenase-1 (HO-1) expression and increased nuclear factor-erythroid 2-related factor 2 (Nrf2) nuclear translocation...
January 15, 2017: Nutrients
https://www.readbyqxmd.com/read/28092746/supranutritional-selenium-intake-from-enriched-milk-casein-impairs-hepatic-insulin-sensitivity-via-attenuated-irs-pi3k-akt-signaling-and-decreased-pgc-1%C3%AE-expression-in-male-sprague-dawley-rats
#9
Priska Stahel, Julie J Kim, Scott R L Cieslar, Jenny M Warrington, Changting Xiao, John P Cant
Selenium (Se)-enriched milk provides antioxidant benefits and has therapeutic potential against cancer. However, both antidiabetic and prodiabetic effects have been attributed to Se. Our objective was to evaluate the effect of Se-enriched milk casein on insulin sensitivity in rats when given at the requirement of 0.25 ppm Se and supranutritionally on both low- and high-fat diets. Two hundred sixteen male Sprague-Dawley rats were fed low- or high-fat diets containing one, two or eight times the Se requirement in a randomized block design...
January 7, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28089218/nkg2d-signaling-the-immune-subversive-side-of-hdac3
#10
Alicia R Folgueras, Segundo Gonzalez, Alejandro López-Soto
Natural killer (NK) cells are alerted to infected and transformed cells by local upregulation of ligands for the NK-activating receptor NKG2D. In a recent report, Greene et al. unveil a new mechanism that induces the expression of the NKG2D ligand retinoic acid early-inducible (RAE-1) in response to murine cytomegalovirus (MCMV) infection through inhibition of casein kinase 2 (CK2), an activator of the repressor histone deacetylase HDAC3.
January 11, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28075359/development-of-pharmacophore-model-for-indeno-1-2-b-indoles-as-human-protein-kinase-ck2-inhibitors-and-database-mining
#11
Samer Haidar, Zouhair Bouaziz, Christelle Marminon, Tuomo Laitinen, Antti Poso, Marc Le Borgne, Joachim Jose
Protein kinase CK2, initially designated as casein kinase 2, is an ubiquitously expressed serine/threonine kinase. This enzyme, implicated in many cellular processes, is highly expressed and active in many tumor cells. A large number of compounds has been developed as inhibitors comprising different backbones. Beside others, structures with an indeno[1,2-b]indole scaffold turned out to be potent new leads. With the aim of developing new inhibitors of human protein kinase CK2, we report here on the generation of common feature pharmacophore model to further explain the binding requirements for human CK2 inhibitors...
January 9, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28052864/lipopolysaccharide-inhibits-colonic-biotin-uptake-via-interference-with-membrane-expression-of-its-transporter-a-role-for-casein-kinase-2-mediated-pathway
#12
Ram Lakhan, Hamid M Said
Biotin (vitamin B7), an essential micronutrient for normal cellular functions, is obtained from both dietary sources as well as gut microbiota. Absorption of biotin in both the small and large intestine is via a carrier-mediated process that involves the sodium-dependent multivitamin transporter, SMVT. While different physiological and molecular aspects of intestinal biotin uptake have been delineated, nothing is known about the effect of LPS on the process. We addressed this issue using in vitro (human colonic epithelial NCM460 cells) and in vivo (mice) models of LPS exposure...
January 4, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28039480/nutrient-induced-fnip-degradation-by-scf%C3%AE-trcp-regulates-flcn-complex-localization-and-promotes-renal-cancer-progression
#13
Katsuyuki Nagashima, Hidefumi Fukushima, Kouhei Shimizu, Aya Yamada, Masumi Hidaka, Hisashi Hasumi, Tetsuro Ikebe, Satoshi Fukumoto, Koji Okabe, Hiroyuki Inuzuka
Folliculin-interacting protein 1 and 2 (FNIP1 and FNIP2) play critical roles in preventing renal malignancy through their association with the tumor suppressor FLCN. Mutations in FLCN are associated with Birt-Hogg-Dubé (BHD) syndrome, a rare disorder with increased risk of renal cancer. Recent studies indicated that FNIP1/FNIP2 double knockout mice display enlarged polycystic kidneys and renal carcinoma, which phenocopies FLCN knockout mice, suggesting that these two proteins function together to suppress renal cancer...
December 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/28030830/ikaros-regulation-of-the-bcl6-bach2-axis-and-its-clinical-relevance-in-acute-lymphoblastic-leukemia
#14
Zheng Ge, Xilian Zhou, Yan Gu, Qi Han, Jianyong Li, Baoan Chen, Qinyu Ge, Elanora Dovat, Jonathon L Payne, Tianyu Sun, Chunhua Song, Sinisa Dovat
B-Cell CLL/Lymphoma 6 (BCL6) is a proto-oncogene that is highly expressed in acute lymphoblastic leukemia (ALL). BTB and CNC Homology 1 Basic Leucine Zipper Transcription Factor 2 (BACH2) is a suppressor of transcription. The BACH2-BCL6 balance controls selection at the pre-B cell receptor checkpoint by regulating p53 expression. However, the underlying mechanism and the clinical relevance of the BCL6/BACH2 axis are unknown. Here, we found that Ikaros, a tumor suppressor encoded by IKZF1, directly binds to both the BCL6 and BACH2 promoters where it suppresses BCL6 and promotes BACH2 expression in B-cell ALL (B-ALL) cells...
January 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28027904/esculentoside-a-suppresses-lipopolysaccharide-induced-pro-inflammatory-molecule-production-partially-by-casein-kinase-2
#15
Yinghua Li, Yan Cao, Jing Xu, Lei Qiu, Weiheng Xu, Jie Li, Yunlong Song, Bin Lu, Zhenlin Hu, Junping Zhang
ETHNOPHARMACOLOGICAL RELEVANCE: Esculentoside A (EsA) is a saponin isolated from the root of Phytolacca esculenta, an herb which has long been used in Traditional Chinese Medicine for various inflammatory diseases. EsA has been reported to have potent anti-inflammatory properties both in vitro and in vivo. AIM OF THE STUDY: The present study focused on the molecular mechanism of EsA for its anti-inflammatory effects in RAW264.7 cells stimulated with lipopolysaccharide (LPS)...
December 24, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27994036/microhomology-mediated-end-joining-is-activated-in-irradiated-human-cells-due-to-phosphorylation-dependent-formation-of-the-xrcc1-repair-complex
#16
Arijit Dutta, Bradley Eckelmann, Sanjay Adhikari, Kazi Mokim Ahmed, Shiladitya Sengupta, Arvind Pandey, Pavana M Hegde, Miaw-Sheue Tsai, John A Tainer, Michael Weinfeld, Muralidhar L Hegde, Sankar Mitra
Microhomology-mediated end joining (MMEJ), an error-prone pathway for DNA double-strand break (DSB) repair, is implicated in genomic rearrangement and oncogenic transformation; however, its contribution to repair of radiation-induced DSBs has not been characterized. We used recircularization of a linearized plasmid with 3'-P-blocked termini, mimicking those at X-ray-induced strand breaks, to recapitulate DSB repair via MMEJ or nonhomologous end-joining (NHEJ). Sequence analysis of the circularized plasmids allowed measurement of relative activity of MMEJ versus NHEJ...
December 19, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27960155/stimulation-of-suicidal-erythrocyte-death-by-ceritinib-treatment-of-human-erythrocytes
#17
Abdulla Al Mamun Bhuyan, Elena Signoretto, Rosi Bissinger, Florian Lang
BACKGROUND/AIMS: The anaplastic lymphoma kinase (ALK) inhibitor ceritinib is utilized for the treatment of ALK positive non-small cell lung carcinoma. Side effects of the drug include decrease of blood hemoglobin concentration. Possible causes of anemia include stimulation of suicidal erythrocyte death or eryptosis, which is characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface. Signaling of eryptosis includes increase of cytosolic Ca2+ activity ([Ca2+]i), oxidative stress, ceramide, staurosporine sensitive protein kinase C, SB203580 sensitive p38 kinase, D4476 sensitive casein kinase 1, and zVAD sensitive caspases...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27959425/inhibition-of-casein-kinase%C3%A2-2-prevents-growth-of-human-osteosarcoma
#18
Kengo Takahashi, Takao Setoguchi, Arisa Tsuru, Yoshinobu Saitoh, Satoshi Nagano, Yasuhiro Ishidou, Shingo Maeda, Tatsuhiko Furukawa, Setsuro Komiya
High-dose chemotherapy and surgical treatment have improved the prognosis of osteosarcoma. However, more than 20% of patients with osteosarcoma still have a poor prognosis. We investigated the expression and function of casein kinase 2 (CK2) in osteosarcoma growth. We then examined the effects of CX-4945, a CK2 inhibitor, on osteosarcoma growth in vitro and in vivo to apply our findings to the clinical setting. We examined the expression of CK2α and CK2β by western blot analysis, and performed WST-1 assays using CK2α and CK2β siRNA or CX-4945...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/27935167/ck2-phospho-independent-assembly-of-the-tel2-associated-stress-signaling-complexes-in-schizosaccharomyces-pombe
#19
Haruna Inoue, Shizuka Sugimoto, Yumiko Takeshita, Miho Takeuchi, Mitsuko Hatanaka, Koji Nagao, Takeshi Hayashi, Aya Kokubu, Mitsuhiro Yanagida, Junko Kanoh
An evolutionarily conserved protein Tel2 regulates a variety of stress signals. In mammals, TEL2 associates with TTI1 and TTI2 to form the Triple T (TTT: TEL2-TTI1-TTI2) complex as well as with all the phosphatidylinositol 3-kinase-like kinases (PIKKs) and the R2TP (Ruvbl1-Ruvbl2-Tah1-Pih1 in budding yeast)/prefoldin-like complex that associates with HSP90. The phosphorylation of TEL2 by casein kinase 2 (CK2) enables direct binding of PIHD1 (mammalian Pih1) to TEL2 and is important for the stability and the functions of PIKKs...
January 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/27920254/casein-kinase-2-is-linked-to-stress-granule-dynamics-through-phosphorylation-of-the-stress-granule-nucleating-protein-g3bp1
#20
Lucas C Reineke, Wei-Chih Tsai, Antrix Jain, Jason T Kaelber, Sung Yun Jung, Richard E Lloyd
Stress granules (SGs) are large macromolecular aggregates that contain translation initiation complexes and mRNAs. Stress granule formation coincides with translational repression, and stress granules actively signal to mediate cell fate decisions by signaling to the translation apparatus to (i) maintain translational repression, (ii) mount various transcriptional responses, including innate immunity, and (iii) repress apoptosis. Previous work showed that G3BP1 is phosphorylated at serine 149, which regulates G3BP1 oligomerization, stress granule assembly, and RNase activity intrinsic to G3BP1...
February 15, 2017: Molecular and Cellular Biology
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