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https://www.readbyqxmd.com/read/28205010/prion-specific-and-surrogate-csf-biomarkers-in-creutzfeldt-jakob-disease-diagnostic-accuracy-in-relation-to-molecular-subtypes-and-analysis-of-neuropathological-correlates-of-p-tau-and-a%C3%AE-42-levels
#1
Francesca Lattanzio, Samir Abu-Rumeileh, Alessia Franceschini, Hideaki Kai, Giulia Amore, Ilaria Poggiolini, Marcello Rossi, Simone Baiardi, Lynne McGuire, Anna Ladogana, Maurizio Pocchiari, Alison Green, Sabina Capellari, Piero Parchi
The differential diagnosis of Creutzfeldt-Jakob disease (CJD) from other, sometimes treatable, neurological disorders is challenging, owing to the wide phenotypic heterogeneity of the disease. Real-time quaking-induced prion conversion (RT-QuIC) is a novel ultrasensitive in vitro assay, which, at variance with surrogate neurodegenerative biomarker assays, specifically targets the pathological prion protein (PrP(Sc)). In the studies conducted to date in CJD, cerebrospinal fluid (CSF) RT-QuIC showed good diagnostic sensitivity (82-96%) and virtually full specificity...
February 15, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28202711/structural-interface-between-lrrk2-and-14-3-3-protein
#2
Loes Stevers, Rens de Vries, Richard Doveston, Lech-Gustav Milroy, Luc Brunsveld, Christian Ottmann
Binding of 14-3-3 proteins to LRRK2 is known to be impaired by a number of Parkinson's disease (PD)-relevant mutations. Abrogation of this interaction is connected to enhanced LRRK2 kinase activity which in turn is implicated in increased ubiquitination of LRRK2, accumulation of LRRK2 into inclusion bodies and reduction of neurite length. Hence, the interaction between 14-3-3 and LRRK2 is of significant interest as a possible drug target for the treatment of PD. However, LRRK2 possesses multiple sites that upon phosphorylation can bind to 14-3-3, thus rendering the interaction relatively complex...
February 15, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28184045/effect-of-novel-inhaler-technique-reminder-labels-on-the-retention-of-inhaler-technique-skills-in-asthma-a-single-blind-randomized-controlled-trial
#3
Iman A Basheti, Nathir M Obeidat, Helen K Reddel
: Inhaler technique can be corrected with training, but skills drop off quickly without repeated training. The aim of our study was to explore the effect of novel inhaler technique labels on the retention of correct inhaler technique. In this single-blind randomized parallel-group active-controlled study, clinical pharmacists enrolled asthma patients using controller medication by Accuhaler [Diskus] or Turbuhaler. Inhaler technique was assessed using published checklists (score 0-9). Symptom control was assessed by asthma control test...
December 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28164784/accumulation-and-tolerance-to-cadmium-heavy-metal-ions-and-induction-of-14-3-3-gene-expression-in-response-to-cadmium-exposure-in-coprinus-atramentarius
#4
Chengjian Xie, Liujie Hu, Yongzhu Yang, Dunxiu Liao, Xingyong Yang
Cadmium (Cd), one of the most toxic heavy-metal pollutants, has a strong and irreversible tendency to accumulate. Bioremediation is a promising technology to remedy and control heavy metal pollutants because of its low cost and ability to recycle heavy metals. Coprinus atramentarius is recognized as being able to accumulate heavy metal ions. In this work, C. atramentarius is cultivated on a solid medium containing Cd(2+) ions to analyze its ability to tolerate different concentrations of the heavy metal ion...
March 2017: Microbiological Research
https://www.readbyqxmd.com/read/28162898/sin-dependent-dissociation-of-the-sad-kinase-cdr2-from-the-cell-cortex-resets-the-division-plane
#5
Sergio A Rincon, Miguel Estravis, Florent Dingli, Damarys Loew, Phong T Tran, Anne Paoletti
Proper division plane positioning is crucial for faithful chromosome segregation but also influences cell size, position, or fate [1]. In fission yeast, medial division is controlled through negative signaling by the cell tips during interphase and positive signaling by the centrally placed nucleus at mitotic entry [2-4]: the cell geometry network (CGN), controlled by the inhibitory cortical gradient of the DYRK kinase Pom1 emanating from the cell tips, first promotes the medial localization of cytokinetic ring precursors organized by the SAD kinase Cdr2 to pre-define the division plane [5-8]; then, massive nuclear export of the anillin-like protein Mid1 at mitosis entry confirms or readjusts the division plane according to nuclear position and triggers the assembly of a medial contractile ring [5, 9-11]...
February 1, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28157811/one-stage-surgical-management-for-lumbar-brucella-spondylitis-by-posterior-debridement-autogenous-bone-graft-and-instrumentation-a-case-series-of-24-patients
#6
Yangbin Chen, Jun-Song Yang, Tao Li, Peng Liu, Tuan-Jiang Liu, Li-Min He, Li-Xiong Qian, Ding-Jun Hao
STUDY DESIGN: Clinical case series. OBJECTIVE: To explore the efficacy and safety of one-stage debridement, autogenous bone graft and instrumentation for lumbar brucella spondylitis (LBS) via a posterior approach. SUMMARY OF BACKGROUND DATA: Reports on LBS are sporadic, and the therapeutic effect and safety of surgical interventions have not been assessed in clinical studies. METHODS: Between January 2012 and January 2014, 24 consecutive patients with symptomatic LBS who underwent a one-stage operation that combined debridement, autogenous bone graft and instrumentation via a posterior approach were enrolled...
February 2, 2017: Spine
https://www.readbyqxmd.com/read/28145403/regulation-of-ft-splicing-by-an-endogenous-cue-in-temperate-grasses
#7
Zhengrui Qin, Jiajie Wu, Shuaifeng Geng, Nan Feng, Fengjuan Chen, Xingchen Kong, Gaoyuan Song, Kai Chen, Aili Li, Long Mao, Liang Wu
Appropriate flowering timing is crucial for plant reproductive success. The florigen, FLOWERING LOCUS T (FT), interacts with 14-3-3 proteins and the bZIP transcription factor FD, functioning at core nodes in multiple flowering pathways. There are two FT homologues, FT1 and FT2, in Brachypodium distachyon. Here we show that FT2 undergoes age-dependent alternative splicing (AS), resulting in two splice variants (FT2α and FT2β). The FT2β-encoded protein cannot interact with FD or 14-3-3s but is able to form heterodimers with FT2α and FT1, thereby interfering with the florigen-mediated assembly of the flowering initiation complex...
February 1, 2017: Nature Communications
https://www.readbyqxmd.com/read/28119482/the-emerging-role-of-cables1-in-cancer-and-other-diseases
#8
Jia-Rong Huang, Guang-Mou Tan, Yong Li, Zhi Shi
Cdk5 and Abl enzyme substrate (Cables) 1 is adaptor protein to link cyclin-dependent kinase (Cdks) with nonreceptor tyrosine kinases and regulate the activity of Cdks by enhancing their Y15 phosphorylation. The emerging evidences also show Cables1 can interact with p53 family proteins, 14-3-3, β-catenin and so on, suggesting Cables1 may be a signaling hub to regulate cell growth. Abnormal expression of Cables1 has been observed in multiple types of cancers and other disease. In this review, we summarize the characteristics of Cables1, and highlight the molecular mechanisms through which Cables1 regulates the development of cancer and other disease...
January 24, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28118532/regulating-the-balance-between-the-kynurenine-and-serotonin-pathways-of-tryptophan-metabolism
#9
Yang Li, Nan Hu, Dan Yang, Gregory Oxenkrug, Qing Yang
Tryptophan is metabolized along the kynurenine and serotonin pathways, resulting in formation of kynurenine metabolites, neuroactive serotonin and melatonin. Each pathway is critical for maintaining healthy homeostasis. However, the two pathways are extremely unequal in their ability to degrade tryptophan, and little is known about the mechanisms maintaining the balance between them. Here, we demonstrated that in PC12 cells, a change of expression of key genes of one pathway resulted in a change of expression of key genes of the other...
January 24, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28117370/costunolide-and-dehydrocostuslactone-combination-treatment-inhibit-breast-cancer-by-inducing-cell-cycle-arrest-and-apoptosis-through-c-myc-p53-and-akt-14-3-3-pathway
#10
Zhangxiao Peng, Yan Wang, Jianhui Fan, Xuejing Lin, Chunying Liu, Yang Xu, Weidan Ji, Chao Yan, Changqing Su
Our previous studies demonstrated that volatile oil from saussurea lappa root (VOSL), rich in two natural sesquiterpene lactones, costunolide (Cos) and dehydrocostuslactone (Dehy), exerts better anti-breast cancer efficacy and lower side effects than Cos or Dehy alone in vivo, however, their anti-cancer molecular mechanisms were still unknown. In this study, we investigated the underlying mechanisms of Cos and Dehy combination treatment (CD) on breast cancer cells through proteomics technology coupled with Western blot validation...
January 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28116547/14-3-3%C3%AE-depletion-drives-a-senescence-program-in-glioblastoma-cells-through-the-erk-skp2-p27-pathway
#11
Sung Bin Seo, Je-Jung Lee, Hye Hyeon Yun, Chang-Nim Im, Yong-Sam Kim, Jeong-Heon Ko, Jeong-Hwa Lee
The induction of senescence in cancer cells has recently been implicated as a mechanism of tumor regression in response to various modes of stress. 14-3-3 proteins are conserved scaffolding molecules that are involved in various cellular functions. Among the seven isoforms, 14-3-3β is specifically expressed in astrocytoma in correlation with the malignancy grade. We investigated the possible role of 14-3-3β in the regulation of senescence induction in A172 glioblastoma cells. The knockdown of 14-3-3β by specific small interfering RNA resulted in a significant change in cellular phenotypes and an increase in cells staining positive for senescence-associated β-galactosidase...
January 23, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28111287/arabidopsis-cbl-interacting-protein-kinases-regulate-carbon-nitrogen-nutrient-response-by-phosphorylating-ubiquitin-ligase-atl31
#12
Shigetaka Yasuda, Shoki Aoyama, Yoko Hasegawa, Takeo Sato, Junji Yamaguchi
In response to the ratio of available carbon (C) and nitrogen (N) nutrients, plants regulate their metabolism, growth, and development, a process called the C/N-nutrient response. However, the molecular basis of C/N-nutrient signaling remains unclear. In this study, we identified three CALCINEURIN B-LIKE (CBL)-INTERACTING PROTEIN KINASES (CIPKs), CIPK7, CIPK12, and CIPK14, as key regulators of the C/N-nutrient response during the post-germination growth stage in Arabidopsis. Single knockout mutants showed hypersensitivity to high C/low N conditions, a phenotype enhanced in a triple knockout mutant, indicating that CIPK7, CIPK12, and CIPK14 have a negative role in the C/N-nutrient response, and have partly redundant function...
January 19, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28103301/differences-in-beef-quality-between-angus-bos-taurus-taurus-and-nellore-bos-taurus-indicus-cattle-through-a-proteomic-and-phosphoproteomic-approach
#13
Rafael Torres de Souza Rodrigues, Mario Luiz Chizzotti, Camilo Elber Vital, Maria Cristina Baracat-Pereira, Edvaldo Barros, Karina Costa Busato, Rafael Aparecido Gomes, Márcio Machado Ladeira, Taiane da Silva Martins
Proteins are the major constituents of muscle and are key molecules regulating the metabolic changes during conversion of muscle to meat. Brazil is one of the largest exporters of beef and most Brazilian cattle are composed by zebu (Nellore) genotype. Bos indicus beef is generally leaner and tougher than Bos taurus such as Angus. The aim of this study was to compare the muscle proteomic and phosphoproteomic profile of Angus and Nellore. Seven animals of each breed previously subjected the same growth management were confined for 84 days...
2017: PloS One
https://www.readbyqxmd.com/read/28094252/a-signature-motif-in-lim-proteins-mediates-binding-to-checkpoint-proteins-and-increases-tumour-radiosensitivity
#14
Xiaojie Xu, Zhongyi Fan, Chaoyang Liang, Ling Li, Lili Wang, Yingchun Liang, Jun Wu, Shaohong Chang, Zhifeng Yan, Zhaohui Lv, Jing Fu, Yang Liu, Shuai Jin, Tao Wang, Tian Hong, Yishan Dong, Lihua Ding, Long Cheng, Rui Liu, Shenbo Fu, Shunchang Jiao, Qinong Ye
Tumour radiotherapy resistance involves the cell cycle pathway. CDC25 phosphatases are key cell cycle regulators. However, how CDC25 activity is precisely controlled remains largely unknown. Here, we show that LIM domain-containing proteins, such as FHL1, increase inhibitory CDC25 phosphorylation by forming a complex with CHK2 and CDC25, and sequester CDC25 in the cytoplasm by forming another complex with 14-3-3 and CDC25, resulting in increased radioresistance in cancer cells. FHL1 expression, induced by ionizing irradiation in a SP1- and MLL1-dependent manner, positively correlates with radioresistance in cancer patients...
January 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28089448/structural-basis-for-the-interaction-of-a-human-small-heat-shock-protein-with-the-14-3-3-universal-signaling-regulator
#15
Nikolai N Sluchanko, Steven Beelen, Alexandra A Kulikova, Stephen D Weeks, Alfred A Antson, Nikolai B Gusev, Sergei V Strelkov
By interacting with hundreds of protein partners, 14-3-3 proteins coordinate vital cellular processes. Phosphorylation of the small heat shock protein, HSPB6, within its intrinsically disordered N-terminal domain activates its interaction with 14-3-3, ultimately triggering smooth muscle relaxation. After analyzing the binding of an HSPB6-derived phosphopeptide to 14-3-3 using isothermal calorimetry and X-ray crystallography, we have determined the crystal structure of the complete assembly consisting of the 14-3-3 dimer and full-length HSPB6 dimer and further characterized this complex in solution using fluorescence spectroscopy, small-angle X-ray scattering, and limited proteolysis...
February 7, 2017: Structure
https://www.readbyqxmd.com/read/28077325/role-of-14-3-3-sigma-in-over-expression-of-p-gp-by-rifampin-and-paclitaxel-stimulation-through-interaction-with-pxr
#16
So Won Kim, Md Hasanuzzaman, Munju Cho, Nam Hyun Kim, Hye-Young Choi, Jung Woo Han, Hyun June Park, Ji Won Oh, Jae-Gook Shin
In this study, we presented the role of 14-3-3σ to activate CK2-Hsp90β-PXR-MDR1 pathway on rifampin and paclitaxel treated LS174T cells and in vivo LS174T cell-xenografted nude mouse model. Following several in vitro and in vivo experiments, rifampin and paclitaxel were found to be stimulated the CK2-Hsp90β-PXR-MDR1 pathway. Of the proteins in this pathway, Pregnane X receptor (PXR) is a representative transcription factor of multidrug resistance protein 1 (MDR1). We constructed FLAG-PXR-LS174T stable cell lines and discovered 22 proteins that interacted with PXR on rifampin treatment...
February 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28074922/soybean-cyclophilin-gmcyp1-interacts-with-an-isoflavonoid-regulator-gmmyb176
#17
Hemanta Raj Mainali, Arun Kumaran Anguraj Vadivel, Xuyan Li, Mark Gijzen, Sangeeta Dhaubhadel
Cyclophilins (CYPs) belong to the immunophilin superfamily with peptidyl-prolyl cis-trans isomerase (PPIase) activity. They catalyze the interconversion of the cis- and trans-rotamers of the peptidyl-prolyl amide bond of peptides. A yeast-two-hybrid screening using the isoflavonoid regulator GmMYB176 as bait identified GmCYP1 as one of the interacting proteins in soybean embryos. GmCYP1 localizes both in the nucleus and cytoplasm, and interacts in planta with GmMYB176, in the nucleus, and with SGF14l (a soybean 14-3-3 protein) in the nucleus and the cytoplasm...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28065409/cdpks-and-14-3-3-proteins-emerging-duo-in-signaling
#18
REVIEW
Mélanie Ormancey, Patrice Thuleau, Christian Mazars, Valérie Cotelle
Calcium-dependent protein kinases (CDPKs) are Ca(2+)-sensors that play pivotal roles in plant development and stress responses. They have the unique ability to directly translate intracellular Ca(2+) signals into reversible phosphorylation events of diverse substrates which can mediate interactions with 14-3-3 proteins to modulate protein functions. Recent studies have revealed roles for the coordinated action of CDPKs and 14-3-3s in regulating diverse aspects of plant biology including metabolism, development, and stress responses...
January 3, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28064210/characteristics-of-autoantibodies-targeting-14-3-3-proteins-and-their-association-with-clinical-features-in-newly-diagnosed-giant-cell-arteritis
#19
Anne Kistner, Marc B Bigler, Kathrin Glatz, Simon B Egli, Fabian S Baldin, Florian A Marquardsen, Matthias Mehling, Katharina M Rentsch, Daniel Staub, Markus Aschwanden, Mike Recher, Thomas Daikeler, Christoph T Berger
OBJECTIVES: Autoantibodies are useful biomarkers for diagnosing and monitoring treatment in some autoimmune diseases. Antibodies against isoforms of 14-3-3 protein have been proposed as biomarkers for the presence of aortic aneurysm in large-vessel vasculitis (LVV). Here, we aimed to evaluate the diagnostic role and potential immunopathological involvement of anti-14-3-3 antibodies in newly diagnosed LVV patients. METHODS: Antibodies against three isoforms of 14-3-3 (γ, ε and ζ) were measured in 90 subjects: 48 GCA and 3 Takayasu's arteritis (TA) patients, and 39 controls (non-inflammatory and inflammatory diseases), using a multiplexed bead-based immunoassay and immunoprecipitation studies...
January 7, 2017: Rheumatology
https://www.readbyqxmd.com/read/28057719/structure-and-inhibitor-specificity-of-the-pctaire-family-kinase-cdk16
#20
Sarah E Dixon-Clarke, Saifeldin N Shehata, Tobias Krojer, Timothy D Sharpe, Frank von Delft, Kei Sakamoto, Alex N Bullock
CDK16 (also known as PCTAIRE1 or PCTK1) is an atypical member of the cyclin-dependent protein kinase (CDK) family that has emerged as a key regulator of neurite outgrowth, vesicle trafficking and cancer cell proliferation. CDK16 is activated through binding to cyclin Y via a phosphorylation-dependent 14-3-3 interaction and has an unique consensus substrate phosphorylation motif compared to conventional CDKs. To elucidate the structure and inhibitor binding properties of this atypical CDK we screened the CDK16 kinase domain against different inhibitor libraries and determined the co-structures of identified hits...
January 5, 2017: Biochemical Journal
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