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https://www.readbyqxmd.com/read/29331299/the-regulatory-roles-of-notch-in-osteocyte-differentiation-via-the-crosstalk-with-canonical-wnt-pathways-during-the-transition-of-osteoblasts-to-osteocytes
#1
Jin Shao, Yinghong Zhou, Yin Xiao
Osteocytes comprise more than 90% of the cells in bone and are differentiated from osteoblasts via an unknown mechanism. Recently, it was shown that Notch signaling plays an important role in osteocyte functions. To gain insights into the mechanisms underlying the functions of Notch in regulating the transition of osteoblasts to osteocytes, we performed a luciferase assay by cloning the proximal E11 and dentin matrix acidic phosphoprotein 1 (DMP1) promotor regions into pGluc-Basic 2 vectors, which were subsequently transfected into the IDG-SW3 (osteocytes), MC3T3 (osteoblasts) and 293T (non-osteoblastic cells) cell lines...
January 10, 2018: Bone
https://www.readbyqxmd.com/read/29330884/synapsin-iii-is-a-key-component-of-%C3%AE-synuclein-fibrils-in-lewy-bodies-of-pd-brains
#2
Francesca Longhena, Gaia Faustini, Tatiana Varanita, Michela Zaltieri, Vanessa Porrini, Isabella Tessari, Pietro Luigi Poliani, Cristina Missale, Barbara Borroni, Alessandro Padovani, Luigi Bubacco, Marina Pizzi, PierFranco Spano, Arianna Bellucci
Lewy bodies (LB) and Lewy neurites (LN), which are primarily composed of α-synuclein (α-syn), are neuropathological hallmarks of Parkinson's disease (PD) and dementia with Lewy bodies (DLB). We recently found that the neuronal phosphoprotein synapsin III (syn III) controls dopamine release via cooperation with α-syn and modulates α-syn aggregation. Here, we observed that LB and LN, in the substantia nigra of PD patients and hippocampus of one subject with DLB, displayed a marked immunopositivity for syn III...
January 13, 2018: Brain Pathology
https://www.readbyqxmd.com/read/29328368/identification-of-significant-biomarkers-and-pathways-associated-with-gastric-carcinogenesis-by-whole-genome-wide-expression-profiling-analysis
#3
Hong-Jun Fei, Song-Chang Chen, Jun-Yu Zhang, Shu-Yuan Li, Lan-Lan Zhang, Yi-Yao Chen, Chun-Xin Chang, Chen-Ming Xu
The incidence of gastric cancer (GC) is extremely high in East Asia. GC is also one of the most common and lethal forms of cancer from a global perspective. However, to date, we have not been able to determine one or several genes as biomarkers in the diagnosis of GC and have also been unable to identify the genes which are important in the therapy of GC. In this study, we analyzed all genome-wide expression profiling arrays uploaded onto the Gene Expression Omnibus (GEO) database to filtrate the differentially expressed genes (DEGs) between normal stomach tissues and GC tissues...
January 11, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29326986/measles-virus-background-and-oncolytic-virotherapy
#4
REVIEW
Sankhajit Bhattacharjee, Pramod Kumar Yadava
Measles is a highly transmissible disease caused by measles virus and remains a major cause of child mortality in developing countries. Measles virus nucleoprotein (N) encapsidates the RNA genome of the virus for providing protection from host cell endonucleases and for specific recognition of viral RNA as template for transcription and replication. This protein is over-expressed at the time of viral replication. The C-terminal of N protein is intrinsically disordered, which enables this protein to interact with several host cell proteins...
March 2018: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/29326436/p66shc-deficiency-enhances-cxcr4-and-ccr7-recycling-in-cll-b-cells-by-facilitating-their-dephosphorylation-dependent-release-from-%C3%AE-arrestin-at-early-endosomes
#5
Laura Patrussi, Nagaja Capitani, Francesca Cattaneo, Noemi Manganaro, Alessandra Gamberucci, Federica Frezzato, Veronica Martini, Andrea Visentin, Pier Giuseppe Pelicci, Mario M D'Elios, Livio Trentin, Gianpietro Semenzato, Cosima T Baldari
Neoplastic cell traffic abnormalities are central to the pathogenesis of chronic lymphocytic leukemia (CLL). Enhanced CXC chemokine receptor-4 (CXCR4) and chemokine receptor-7 (CCR7) recycling contributes to the elevated surface levels of these receptors on CLL cells. Here we have addressed the role of p66Shc, a member of the Shc family of protein adaptors the expression of which is defective in CLL cells, in CXCR4/CCR7 recycling. p66Shc reconstitution in CLL cells reduced CXCR4/CCR7 recycling, lowering their surface levels and attenuating B-cell chemotaxis, due to their accumulation in Rab5+ endosomes as serine-phosphoproteins bound to β-arrestin...
January 12, 2018: Oncogene
https://www.readbyqxmd.com/read/29325564/engineered-recombinant-protein-products-of-the-avian-paramyxovirus-type-1-nucleocapsid-and-phosphoprotein-genes-for-serological-diagnosis
#6
Na Zhao, Christian Grund, Martin Beer, Timm C Harder
BACKGROUND: Virulent Newcastle disease virus (NDV, avian Avulavirus-1, APMV-1) induces a highly contagious and lethal systemic disease in gallinaceous poultry. APMV-1 antibody detection is used for surveillance and to control vaccination, but is hampered by cross-reactivity to other subtypes of avian Avulaviruses. Data are lacking concerning the applicability of NDV V proteins as differential diagnostic marker to distinguish vaccinated from virus-infected birds (DIVA strategy). METHODS: Full length and C-terminally truncated nucleocapsid (NP) protein, and the unique C-terminal regions of the phospho- (P) and V proteins of the NDV LaSota strain were bacterially expressed as fusion proteins with the multimerization domain of the human C4 binding protein, and used as diagnostic antigens in indirect ELISA...
January 11, 2018: Virology Journal
https://www.readbyqxmd.com/read/29304094/positive-associations-between-upregulated-levels-of-stress-induced-phosphoprotein-1-and-matrix-metalloproteinase-9-in-endometriosis-adenomyosis
#7
Hsin-Shih Wang, Chia-Lung Tsai, Pi-Yueh Chang, Angel Chao, Ren-Chin Wu, Shun-Hua Chen, Chin-Jung Wang, Chih-Feng Yen, Yun-Shien Lee, Tzu-Hao Wang
Stress-induced phosphoprotein-1 (STIP1), an adaptor protein that coordinates the functions of HSP70 and HSP90 in protein folding, has been implicated in the development of human gynecologic malignancies. This case-control study investigates STIP1 serum levels and tissue expression in relation to endometriosis/adenomyosis in Taiwanese population. Female patients with surgically confirmed endometriosis/adenomyosis were compared with women free of endometriosis/adenomyosis. Serum STIP1 levels were measured using an enzyme-linked immunosorbent assay and surgical tissues were analyzed by immunohistochemistry...
2018: PloS One
https://www.readbyqxmd.com/read/29303612/the-effect-of-induction-therapy-on-established-cmv-specific-t-cell-immunity-in-living-donor-kidney-transplantation
#8
L Stranavova, P Hruba, E Girmanova, I Tycova, A Slavcev, J Fronek, J Slatinska, P Reinke, H-D Volk, O Viklicky
Cytomegalovirus (CMV) infection influences both short and long term outcomes in immunosuppressed organ transplant recipients. The aim of this study was to evaluate the effect of different induction immunosuppression regimens on CMV specific T cell response in patients with already established CMV immunity. In 24 seropositive living donor kidney recipients, the frequency of CMV specific T cells was determined by ELISPOT (Enzyme-Linked ImmunoSpot) assay prior and 6 months after transplantation. Recipients' peripheral blood mononuclear cells were stimulated with immediate-early (IE1) and phosphoprotein 65 (pp65) CMV-derived peptide pools and the number of cells producing interferon gamma (IFN-gamma) was assessed...
January 5, 2018: Physiological Research
https://www.readbyqxmd.com/read/29298830/golgi-phosphoprotein-2-is-a-novel-regulator-of-il-12-production-and-macrophage-polarization
#9
Wei Zhang, Hajeong Kim, Jiyang Lv, Na Zhao, Xiaojing Ma
Golgi phosphoprotein 2 (GOLPH2), a widely expressed Golgi type II transmembrane protein, has been implicated in several important physiological and pathological processes, including virus infections, cancer cell proliferation, and metastasis. However, its biological functions and mechanisms, particularly in the immune system, remain highly obscure. In this study, we report the biochemical identification of GOLPH2 from B cell lymphoma culture supernatant and show that the secreted protein could inhibit IL-12 production by dendritic cells (DCs) and IL-12-induced IFN-γ production by activated T cells...
January 3, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29297177/low-cpne3-expression-is-associated-with-risk-of-acute-myocardial-infarction-a-feasible-genetic-marker-of-acute-myocardial-infarction-in-patients-with-stable-coronary-artery-disease
#10
Buchuan Tan, Long Liu, Yushuang Yang, Qian Liu, Liping Yang, Fanbo Meng
BACKGROUND: Gene COPINE III may be related to a phosphoprotein with intrinsic kinase activity and belongs to an unconventional kinase family. The CPNE3 gene may be used as a biomarker for assessment of occurrence and prognosis of various tumors. METHODS: Peripheral blood was collected from 87 stable CAD patients and 91 AMI patients. Real-time quantitative PCR test and the western blot method were adopted to measure expression quantity of CPNE3 gene at the mRNA level and the protein level...
January 3, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29295987/discovery-of-human-cell-selective-effector-molecules-using-single-cell-multiplexed-activity-metabolomics
#11
David C Earl, P Brent Ferrell, Nalin Leelatian, Jordan T Froese, Benjamin J Reisman, Jonathan M Irish, Brian O Bachmann
Discovering bioactive metabolites within a metabolome is challenging because there is generally little foreknowledge of metabolite molecular and cell-targeting activities. Here, single-cell response profiles and primary human tissue comprise a response platform used to discover novel microbial metabolites with cell-type-selective effector properties in untargeted metabolomic inventories. Metabolites display diverse effector mechanisms, including targeting protein synthesis, cell cycle status, DNA damage repair, necrosis, apoptosis, or phosphoprotein signaling...
January 2, 2018: Nature Communications
https://www.readbyqxmd.com/read/29289827/b23-nucleophosmin-interacts-with-bovine-immunodeficiency-virus-rev-protein-and-facilitates-viral-replication
#12
Ana Maria Passos-Castilho, Claude Marchand, Denis Archambault
The bovine immunodeficiency virus (BIV) Rev shuttling protein contains nuclear/nucleolar localization signals and nuclear import/export mechanisms that are novel among lentivirus Rev proteins. Several viral proteins localize to the nucleolus, which may play a role in processes that are essential to the outcome of viral replication. Although BIV Rev localizes to the nucleoli of transfected/infected cells and colocalizes with one of its major proteins, nucleophosmin (NPM1, also known as B23), the role of the nucleolus and B23 in BIV replication remains to be determined...
December 28, 2017: Virology
https://www.readbyqxmd.com/read/29285241/golph3-a-novel-biomarker-that-correlates-with-poor-survival-and-resistance-to-chemotherapy-in-breast-cancer
#13
Shicong Tang, Hong Pan, Wei Wei, Huawei Yang, Jianlun Liu, Rirong Yang
The association between Golgi phosphoprotein 3 (GOLPH3) and clinical pathological characteristics, as well as the clinical outcomes of both neoadjuvant and adjuvant chemotherapies in breast cancer, remain largely unknown. In this study, we investigated the biological role and clinical significance of GOLPH3 in breast cancer. We found that GOLPH3 expression in tumor tissue was higher than that in adjacent noncancerous tissue (ANT) and fibroadenoma. GOLPH3 silencing reduced the migration, invasion, and proliferation of breast cancer cells and promoted apoptosis of the cells...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29283175/ebp50-suppresses-the-proliferation-of-mcf-7-human-breast-cancer-cells-via-promoting-beclin-1-p62-mediated-lysosomal-degradation-of-c-myc
#14
Hong Liu, Wu-Li Zhao, Jia-Ping Wang, Bing-Mu Xin, Rong-Guang Shao
c-Myc, a key activator of cell proliferation and angiogenesis, promotes the development and progression of breast cancer. Ezrin-radixin-moesin-binding phosphoprotein-50 (EBP50) is a multifunctional scaffold protein that suppresses the proliferation of breast cancer cells. In this study we investigated whether the cancer-suppressing effects of EBP50 resulted from its regulation of c-Myc signaling in human breast cancer MCF-7 cells in vitro and in vivo. We first found a significant correlation between EBP50 and c-Myc expression levels in breast cancer tissue, and demonstrated that EBP50 suppressed cell proliferation through decreasing the expression of c-Myc and its downstream proteins cyclin A, E and Cdc25A in MCF-7 cells...
December 28, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29282612/the-role-of-synapsins-in-neurological-disorders
#15
REVIEW
Fatima Javed Mirza, Saadia Zahid
Synapsins serve as flagships among the presynaptic proteins due to their abundance on synaptic vesicles and contribution to synaptic communication. Several studies have emphasized the importance of this multi-gene family of neuron-specific phosphoproteins in maintaining brain physiology. In the recent times, increasing evidence has established the relevance of alterations in synapsins as a major determinant in many neurological disorders. Here, we give a comprehensive description of the diverse roles of the synapsin family and the underlying molecular mechanisms that contribute to several neurological disorders...
December 27, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29282096/exosomal-proteins-as-potential-markers-of-tumor-diagnosis
#16
REVIEW
Aichun Li, Tianbao Zhang, Min Zheng, Yanning Liu, Zhi Chen
Liquid biopsy especially that of exosomes carries tumor-specific molecules and provides useful information during tumor development and progression in "real time." Exosomes are membrane-encapsulated vesicles, constantly released by multiple cells, including cancer cells, in large quantities, and are widely present in body fluids. Tumor exosomes can remodel a tumor-supportive microenvironment via cross-talk with target cells. Recent research has mainly focused on exosomal miRNAs and to a small degree on proteins...
December 27, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29259034/ablation-of-the-mammalian-lectin-galectin-8-induces-bone-defects-in-mice
#17
Yaron Vinik, Hadas Shatz-Azoulay, Sahar Hiram-Bab, Leonid Kandel, Yankel Gabet, Gurion Rivkin, Yehiel Zick
Mice overexpressing galectin-8 [gal-8 transgenic (Tg)], a secreted mammalian lectin, exhibit enhanced bone turnover and reduced bone mass, similar to cases of postmenopausal osteoporosis. Here, we show that gal-8 knockout (KO) mice have increased bone mass accrual at a young age but exhibit accelerated bone loss during adulthood. These phenotypes can be attributed to a gal-8-mediated increase in receptor activator of NF-κB ligand (RANKL) expression that promotes osteoclastogenesis, combined with direct inhibition of osteoblasts differentiation, evident by reduced bone morphogenetic protein (BMP) signaling, reduced phosphorylation of receptor regulated mothers against decapentaplegic homolog (R-SMAD) and reduced expression of osteoblasts differentiation markers osterix, osteocalcin, runt-related transcription factor 2 (RUNX2), dentin matrix acidic phosphoprotein-1 (DMP1), and alkaline phosphatase...
December 19, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29251255/effects-of-genetic-factors-to-inhaled-corticosteroid-response-in-children-with-asthma-a-literature-review
#18
Huong Duong-Thi-Ly, Ha Nguyen-Thi-Thu, Long Nguyen-Hoang, Hanh Nguyen-Thi-Bich, Timothy J Craig, Sy Duong-Quy
Numerous studies have examined the association between pharmacogenetic effects and the response to inhaled corticosteroids (ICS) in patients with asthma. In fact, several single nucleotide polymorphisms of a number of candidate genes have been identified that might influence the clinical response to ICS in children with asthma. Their direct or indirect effects depend on their role in the inflammatory process in asthma or the anti-inflammatory action of corticosteroids, respectively. Among the genes identified, variants in T-box 21 ( TBX21) and Fc fragment of IgE receptor II ( FCER2) contribute indirectly to the variability in the response to ICS by altering the inflammatory mechanisms in asthma, while other genes such as corticotropin releasing hormone receptor 1 ( CRHR1), nuclear receptor subfamily 3 group C member 1 ( NR3C1), stress induced phosphoprotein 1 ( STIP1), dual specificity phosphatase 1 (DUSP1), glucocorticoid induced 1 (GLCCI1), histone deacetylase 1 (HDAC), ORMDL sphingolipid biosynthesis regulator 3 (ORMDL3), and vascular endothelial growth factors (VEGF) directly affect this variability through the anti-inflammatory mechanisms of ICS...
December 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29242214/expressed-gene-fusions-as-frequent-drivers-of-poor-outcomes-in-hormone-receptor-positive-breast-cancer
#19
Karina J Matissek, Maristela L Onozato, Sheng Sun, Zongli Zheng, Andrew Schultz, Jesse Lee, Kristofer Patel, Piiha-Lotta Jerevall, Srinivas V Saladi, Allison MacLeay, Mehrad Tavallai, Tanja Badovinac-Crnjevic, Carlos Barrios, Nuran Beşe, Arlene Chan, Yanin Chavarri-Guerra, Marcio Debiasi, Elif Demirdogen, Unal Egeli, Sehsuvar Gökgöz, Henry Gomez, Pedro Liedke, Ismet Tasdelen, Sahsine Tolunay, Gustavo Werutsky, Jessica St Louis, Nora Horick, Dianne M Finkelstein, Long Phi Le, Aditya Bardia, Paul E Goss, Dennis C Sgroi, A John Iafrate, Leif W Ellisen
We sought to uncover novel genetic drivers of hormone-receptor positive (HR+) breast cancer, employing a targeted next-generation sequencing approach for detecting expressed gene rearrangements without prior knowledge of the fusion partners. We identified intergenic fusions involving driver genes including PIK3CA, AKT3, RAF1 and ESR1 in 14% (24/173) of unselected patients with advanced HR+ breast cancer. Fluorescence in situ hybridization (FISH) confirmed the corresponding chromosomal rearrangements in both primary and metastatic tumors...
December 14, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/29240226/engineering-and-cytosolic-delivery-of-a-native-regulatory-protein-and-its-variants-for-modulation-of-erk2-signaling-pathway
#20
Jeong-Hyun Ryou, Yoo-Kyoung Sohn, Dong-Gun Kim, Hyun-Ho Kyeong, Hak-Sung Kim
The modulation of a cell signaling process using a molecular binder followed by an analysis of the cellular response is crucial for understanding its role in the cellular function and developing pharmaceuticals. Herein, we present the modulation of the ERK2-mediated signaling pathway through the cytosolic delivery of a native regulatory protein for ERK2, i.e, PEA-15 (phosphoprotein enriched in astrocytes, 15 kDa), and its engineered variants using a bacterial toxin-based delivery system. Based on biochemical and structural analyses, PEA-15 variants with different phosphorylation sites and a high affinity for ERK2 were designed...
December 14, 2017: Biotechnology and Bioengineering
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