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Casein kinase 1

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https://www.readbyqxmd.com/read/29343571/casein-kinase-1%C3%AE-mediates-degradation-of-receptors-for-type-i-and-type-ii-interferons-caused-by-hemagglutinin-of-influenza-a-virus
#1
Chuan Xia, Jennifer J Wolf, Madhuvanthi Vijayan, Caleb J Studstill, Wenjun Ma, Bumsuk Hahm
Although influenza A virus (IAV) evades cellular defense systems to effectively propagate in the host, the viral immune evasive mechanisms are incompletely understood. Our recent data showed that hemagglutinin (HA) of IAV induces degradation of type I IFN receptor 1 (IFNAR1). Here, we demonstrate that IAV HA induces degradation of type II IFN (IFN-γ) receptor 1 (IFNGR1) as well as IFNAR1 via casein kinase 1α (CK1α), resulting in the impairment of cellular responsiveness to both type I and II IFNs. IAV infection or transient HA expression induced degradation of both IFNGR1 and IFNAR1, whereas HA gene-deficient IAV failed to downregulate the receptors...
January 17, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29330702/ptac10-an-s1-domain-containing-component-of-the-transcriptionally-active-chromosome-complex-is-essential-for-plastid-gene-expression-in-arabidopsis-thaliana-and-is-phosphorylated-by-chloroplast-targeted-casein-kinase-ii
#2
Qing-Bo Yu, Tuan-Tuan Zhao, Lin-Shan Ye, Ling Cheng, Ying-Qian Wu, Chao Huang, Zhong-Nan Yang
In higher plant chloroplasts, the plastid-encoded RNA polymerase (PEP) consists of four catalytic subunits and numerous nuclear-encoded accessory proteins, including pTAC10, an S1-domain-containing protein. In this study, pTAC10 knockout lines were characterized. Two ptac10 mutants had an albino phenotype and severely impaired chloroplast development. The pTAC10 genomic sequence fused to a four-tandem MYC tag driven by its own promoter functionally complemented the ptac10-1 mutant phenotype. pTAC10 was present in both the chloroplast stroma and thylakoids...
January 12, 2018: Photosynthesis Research
https://www.readbyqxmd.com/read/29328483/mir%C3%A2-98%C3%A2-5p-promotes-osteoblast-differentiation-in-mc3t3%C3%A2-e1-cells-by-targeting-ckip%C3%A2-1
#3
Qiliang Liu, Yong Guo, Yang Wang, Xianqiong Zou, Zhixiong Yan
Casein kinase 2-interacting protein 1 (CKIP-1) is a negative regulator for bone formation. Previously, using bioinformatics analysis, CKIP‑1 has been predicted to serve the role of target gene of miR‑98‑5p. In the present study, the potential role of miR‑98‑5p in regulating osteoblast differentiation through CKIP‑1 was investigated. Following pre‑treatment with microRNA (miR)‑98‑5p agomir or miR‑98‑5p antagomir, MC3T3‑E1 cells were cultured in an osteoinductive medium. Subsequently, the expression of miR‑98‑5p, CKIP‑1 and levels of osteoblast differentiation markers, including alkaline phosphatase, matrix mineralization, osteocaicin, collagen type I, runt‑related transcription factor 2 and osteopontin were assayed...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29317454/casein-kinase-1-is-a-therapeutic-target-in-chronic-lymphocytic-leukemia
#4
Pavlina Janovska, Jan Verner, Jiri Kohoutek, Lenka Bryjova, Michaela Gregorova, Marta Dzimkova, Hana Skabrahova, Tomasz Radaszkiewicz, Petra Ovesna, Olga Vondalova Blanarova, Tereza Nemcova, Zuzana Hoferova, Katerina Vasickova, Lucie Smyckova, Alexander Egle, Sarka Pavlova, Lucie Poppova, Karla Plevova, Sarka Pospisilova, Vitezslav Bryja
Casein kinase (CK) 1δ/ε is a key component of non-canonical Wnt signaling pathways, which were shown previously to drive pathogenesis of chronic lymphocytic leukemia (CLL). In this study we investigated thoroughly the effects of CK1δ/ε inhibition on the primary CLL cells and analyzed the therapeutic potential in vivo using two murine model systems based on the Eµ-TCL1-induced leukemia (syngeneic adoptive transfer model and spontaneous disease development), which resemble closely the human CLL. We can demonstrate that CK1δ/ε inhibitor PF-670462 significantly blocks microenvironmental interactions - chemotaxis, invasion and communication with stromal cells in primary CLL cells in all major subtypes of CLL...
January 9, 2018: Blood
https://www.readbyqxmd.com/read/29286069/a-16-gene-expression-signature-to-distinguish-stage%C3%A2-i-from-stage%C3%A2-ii-lung-squamous-carcinoma
#5
Rui Wang, Yuxing Cai, Baoping Zhang, Zhengxia Wu
The present study aimed to perform screening of a gene signature for the discrimination and prognostic prediction of stage I and II lung squamous carcinoma. A microarray meta‑analysis was performed to identify differentially expressed genes (DEGs) between stage I and II lung squamous carcinoma samples in seven microarray datasets collected from the Gene Expression Omnibus database via the MetaQC and MetaDE package in R. The important DEGs were selected according to the betweenness centrality value of the protein‑protein interaction (PPI) network...
December 19, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29250165/evaluating-the-associations-between-human-circadian-rhythms-and-dysregulated-genes-in-liver-cancer-cells
#6
Andrea Polo, Sakshi Singh, Anna Crispo, Marilina Russo, Aldo Giudice, Maurizio Montella, Giovanni Colonna, Susan Costantini
Network analysis is a useful approach in cancer biology as it provides information regarding the genes and proteins. In our previous study, a network analysis was performed on dysregulated genes in HepG2 cells, a hepatoblastoma cell line that lacks the viral infection, compared with normal hepatocytes, identifying the presence of 26 HUB genes. The present study aimed to identify whether these previously identified HUB genes participate in the network that controls the human circadian rhythms. The results of the present study demonstrated that 20/26 HUB genes were associated with the metabolic processes that control human circadian rhythms, which supports the hypothesis that a number of cancer types are dependent from circadian cycles...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29248720/ckip-1-affects-the-polyubiquitination-of-nrf2-and-keap1-via-mediating-smurf1-to-resist-hg-induced-renal-fibrosis-in-gmcs-and-diabetic-mice-kidneys
#7
Wenyan Gong, Zhiquan Chen, Yezi Zou, Lei Zhang, Junying Huang, Peiqing Liu, Heqing Huang
Our previous study indicated that Casein kinase 2 interacting protein-1 (CKIP-1) could promote the activation of the nuclear factor E2-related factor 2 (Nrf2)/ antioxidant response element (ARE) pathway, playing a significant role in inhibiting the fibrosis of diabetic nephropathy (DN). However, the underlying mechanism is still unknown. Here, we investigated whether CKIP-1 affects the polyubiquitination of Nrf2 and its cytosolic inhibitor kelch like ECH-associated protein 1 (Keap1) via mediating Smad ubiquitylation regulatory factor-1 (Smurf1) to promote the activation of the Nrf2/ARE signaling and resist high glucose (HG)-induced renal fibrosis in glomerular mesangial cells (GMCs) and diabetic mice kidneys...
February 1, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29248227/d-glucose-and-amino-acid-deficiency-inhibits-casein-synthesis-through-jak2-stat5-and-ampk-mtor-signaling-pathways-in-mammary-epithelial-cells-of-dairy-cows
#8
M C Zhang, S G Zhao, S S Wang, C C Luo, H N Gao, N Zheng, J Q Wang
Amino acids and energy deficiency lead to lower milk protein content in dairy cows. However, the known mechanisms involved in this process do not adequately explain the variability of milk protein concentration in the mammary gland. We hypothesized that a deficiency in d-glucose (d-Glc) or AA would inhibit casein synthesis by regulating signaling pathways in mammary epithelial cells. Cow mammary epithelial cells (CMEC) were subjected to combinations of 1 of 3 concentrations of d-Glc (0, 2.50, or 17.5 mM) and 1 of 3 concentrations of AA (0, 1...
December 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29223351/ck2%C3%AE-promotes-advanced-glycation-end-products-induced-expressions-of-fibronectin-and-intercellular-adhesion-molecule-1-via-activating-mrtf-a-in-glomerular-mesangial-cells
#9
Zhiquan Chen, Qiuhong Chen, Junying Huang, Wenyan Gong, Yezi Zou, Lei Zhang, Peiqing Liu, Heqing Huang
Advanced glycation end products (AGEs) modification of extracellular matrix proteins induces crosslinking, which results in thickening of the basement membrane and activating several intracellular signaling cascades, eventually promoting the pathological progression of diabetic nephropathy (DN). We have previously confirmed that casein kinase 2α (CK2α) activates the nuclear factor of kappaB (NF-κB) signaling pathway to enhance high glucose-induced expressions of fibronectin (FN) and intercellular adhesion molecule-1 (ICAM-1) in glomerular mesangial cells (GMCs)...
December 6, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29222110/a-ck1-fret-biosensor-reveals-that-ddx3x-is-an-essential-activator-of-ck1%C3%AF%C2%B5
#10
Christine Dolde, Joachim Bischof, Simon Grüter, Anna Montada, Jakob Halekotte, Christian Peifer, Hubert Kalbacher, Ulrich Baumann, Uwe Knippschild, Beat Suter
Casein kinase 1 (CK1) plays central roles in various signal transduction pathways and performs many cellular activities. For a long time CK1 was thought to act independent of modulatory subunits and in a constitutive manner. Recently, DEAD box RNA helicases, in particular DEAD box RNA helicase 3 X-linked (DDX3X), were found to stimulate CK1 activity in vitro In order to observe CK1 activity in living cells and to study its interaction with DDX3X, we developed a CK1-specific FRET biosensor. This tool revealed that DDX3X is indeed required for full CK1 activity in living cells...
December 8, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/29209280/meloidogyne-incognita-fatty-acid-and-retinol-binding-protein-mi-far-1-affects-nematode-infection-of-plant-roots-and-the-attachment-of-pasteuria-penetrans-endospores
#11
Victor Phani, Tagginahalli N Shivakumara, Keith G Davies, Uma Rao
Root-knot nematode (RKN) Meloidogyne incognita is an economically important pest of crops. Pasteuria penetrans, is a nematode hyperparasitic bacterium capable of suppressing the reproduction of RKN and thereby useful for its management. Secreted fatty acid and retinol-binding proteins are unique in nematodes and are engaged in nutrient acquisition, development and reproduction; they are also a component of the nematode cuticle and thought to be involved in the interface between hosts and parasites. Attachment of endospores to the cuticle of second stage juveniles of RKN is the primary step of infection and several factors have been identified to facilitate attachment...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29191835/phosphorylation-of-human-enhancer-filamentation-1-hef1-stimulates-interaction-with-polo-like-kinase-1-leading-to-hef1-localization-to-focal-adhesions
#12
Kyung Ho Lee, Jeong-Ah Hwang, Sun-Ok Kim, Jung Hee Kim, Sang Chul Shin, Eunice EunKyeong Kim, Kyung S Lee, Kunsoo Rhee, Byeong Hwa Jeon, Jeong Kyu Bang, Hyunjoo Cha-Molstad, Nak-Kyun Soung, Jae-Hyuk Jang, Sung-Kyun Ko, Hee Gu Lee, Jong Seog Ahn, Yong Tae Kwon, Bo Yeon Kim
Elevated expression of human enhancer filamentation 1 (HEF1; also known as NEDD9 or Cas-L) is an essential stimulus for the metastatic process of various solid tumors. This process requires HEF1 localization to focal adhesions (FAs). Although the association of HEF1 with FAs is considered to play a role in cancer cell migration, the mechanism targeting HEF1 to FAs remains unclear. Moreover, upregulation of polo-like kinase 1 (Plk1) positively correlates with human cancer metastasis, yet how Plk1 deregulation promotes metastasis remains elusive...
November 30, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29186912/computer-aided-drug-design-applied-to-marine-drug-discovery-meridianins-as-alzheimer-s-disease-therapeutic-agents
#13
Laura Llorach-Pares, Alfons Nonell-Canals, Melchor Sanchez-Martinez, Conxita Avila
Computer-aided drug discovery/design (CADD) techniques allow the identification of natural products that are capable of modulating protein functions in pathogenesis-related pathways, constituting one of the most promising lines followed in drug discovery. In this paper, we computationally evaluated and reported the inhibitory activity found in meridianins A-G, a group of marine indole alkaloids isolated from the marine tunicate Aplidium, against various protein kinases involved in Alzheimer's disease (AD), a neurodegenerative pathology characterized by the presence of neurofibrillary tangles (NFT)...
November 27, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29179493/sphingosine-kinase-1-mediates-diabetic-renal-fibrosis-via-nf-%C3%AE%C2%BAb-signaling-pathway-involvement-of-ck2%C3%AE
#14
Junying Huang, Jingyan Li, Zhiquan Chen, Jie Li, Qiuhong Chen, Wenyan Gong, Peiqing Liu, Heqing Huang
Sphingosine kinase 1 (SphK1) plays a pivotal role in regulating diabetic renal fibrotic factors such as fibronectin (FN) and intercellular adhesion molecule-1 (ICAM-1). Especially, activation of SphK1 is closely linked to the body inflammatory reaction. Casein kinase 2α subunit (CK2α), a protein kinase related to inflammatory reaction, influences diabetic renal fibrosis and expressions of FN and ICAM-1 via NF-κB pathway. However, the mechanism by which SphK1 mediates diabetic renal fibrosis has not yet fully elucidated...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29113166/expression-of-circadian-clock-genes-in-human-colorectal-adenoma-and-carcinoma
#15
Tomoyuki Momma, Hirokazu Okayama, Masaru Saitou, Hidekazu Sugeno, Nobuhiro Yoshimoto, Yuji Takebayashi, Shinji Ohki, Seiichi Takenoshita
Circadian rhythms are fundamental biological systems in most organisms. Epidemiological and animal studies have demonstrated that disruption of circadian rhythms is linked to tumor progression and mammalian tumorigenesis. However, the clinical significance of in situ clock gene expression in precancerous and cancerous colorectal lesions remains unknown. The present study aimed to investigate mRNA transcript levels of circadian clock genes within human colorectal cancer and adenoma tissue sections. Using in situ hybridization, the expression of key clock genes, including period circadian protein homolog (Per) 1 and 2, cryptochrome 1 (Cry1), circadian locomoter output cycles protein kaput (Clock), brain and muscle ARNT-like protein 1 (Bmal1) and casein kinase 1ε (CK1ε) were retrospectively examined in 51 cases of colorectal carcinoma and 10 cases of adenoma...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29109149/chronic-oxidative-stress-promotes-gadd34-mediated-phosphorylation-of-the-tar-dna-binding-protein-tdp-43-a-modification-linked-to-neurodegeneration
#16
Catherine Wenhui Goh, Irene Chengjie Lee, Jeyapriya Rajameenakshi Sundaram, Simi Elizabeth George, Permeen Yusoff, Matthew Hayden Brush, Newman Siu Kwan Sze, Shirish Shenolikar
Oxidative and endoplasmic reticulum (ER) stresses are hallmarks of the pathophysiology of amyotrophic lateral sclerosis (ALS) and other neurodegenerative diseases. In these stresses, different kinases phosphorylate eukaryotic initiation factor eIF2α enabling the translation of stress response genes, among these is GADD34, the protein product of which recruits the α-isoform of protein phosphatase 1 catalytic subunit (PP1α) and eIF2α to assemble a phosphatase complex catalyzing eIF2α dephosphorylation and resumption of protein synthesis...
November 6, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29069804/progesterone-receptor-membrane-component-1-is-phosphorylated-upon-progestin-treatment-in-breast-cancer-cells
#17
Marina Willibald, Giuliano Bayer, Vanessa Stahlhut, Gereon Poschmann, Kai Stühler, Berthold Gierke, Michael Pawlak, Harald Seeger, Alfred O Mueck, Dieter Niederacher, Tanja Fehm, Hans Neubauer
Menopausal hormone therapy, using estrogen and synthetic progestins, is associated with an increased risk of developing breast cancer. The effect of progestins on breast cells is complex and not yet fully understood. In previous in vitro and in vivo studies, we found different progestins to increase the proliferation of Progesterone Receptor Membrane Component-1 (PGRMC1)-overexpressing MCF7 cells (MCF7/PGRMC1), suggesting a possible role of PGRMC1 in transducing membrane-initiated progestin signals. Understanding the activation mechanism of PGRMC1 by progestins will provide deeper insights into the mode of action of progestins on breast cells and the often-reported phenomenon of elevated breast cancer rates upon progestin-based hormone therapy...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29042609/structural-analysis-of-pim1-kinase-complexes-with-atp-competitive-inhibitors
#18
Jozefina Bogusz, Karol Zrubek, Krzysztof P Rembacz, Przemyslaw Grudnik, Przemyslaw Golik, Malgorzata Romanowska, Benedykt Wladyka, Grzegorz Dubin
PIM1 is an oncogenic kinase overexpressed in a number of cancers where it correlates with poor prognosis. Several studies demonstrated that inhibition of PIM1 activity is an attractive strategy in fighting overexpressing cancers, while distinct structural features of ATP binding pocket make PIM1 an inviting target for the design of selective inhibitors. To facilitate development of specific PIM1 inhibitors, in this study we report three crystal structures of ATP-competitive inhibitors at the ATP binding pocket of PIM1...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29038116/design-principles-of-phosphorylation-dependent-timekeeping-in-eukaryotic-circadian-clocks
#19
Koji L Ode, Hiroki R Ueda
The circadian clock in cyanobacteria employs a posttranslational oscillator composed of a sequential phosphorylation-dephosphorylation cycle of KaiC protein, in which the dynamics of protein structural changes driven by temperature-compensated KaiC's ATPase activity are critical for determining the period. On the other hand, circadian clocks in eukaryotes employ transcriptional feedback loops as a core mechanism. In this system, the dynamics of protein accumulation and degradation affect the circadian period...
October 16, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/29033852/activation-of-casein-kinase-ii-by-gallic-acid-induces-bik-bax-bak-mediated-er-ca-ros-dependent-apoptosis-of-human-oral-cancer-cells
#20
Meng-Liang Lin, Shih-Shun Chen
Induction of the generation of endoplasmic reticulum (ER) calcium (Ca(++))-mediated reactive oxygen species (ROS) by gallic acid (GA) has been implicated in the mitochondrial apoptotic death of human oral cancer (OC) cells, but the molecular mechanism by which GA causes ER Ca(++) release of OC cells to undergo cell death remains unclear. Here, we report that GA-induced phosphorylation of B-cell lymphoma 2 (BCL-2)-interacting killer (BIK) (threonine (Thr) 33/Serine (Ser) 35) and p53 (Ser 15 and Ser 392), Bcl-2-associated x protein (BAX)/BCL-2 antagonist killer 1 (BAK) oligomerization on the ER and mitochondria, rising of cytosolic Ca(+)(+) and ROS, cytochrome c (Cyt c) release from the mitochondria, Ψm loss, and apoptosis were suppressed in cells co-treated with a specific inhibitor of casein kinase II (CK II) (4,5,6,7-tetrabromobenzotriazole)...
2017: Frontiers in Physiology
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