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FEBS Open Bio

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https://www.readbyqxmd.com/read/28097094/corrigendum
#1
(no author information available yet)
[This corrects the article DOI: 10.1002/2211-5463.12131.].
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097093/vascular-endothelial-growth-factor-suppresses-tnfsf15-production-in-endothelial-cells-by-stimulating-mir-31-and-mir-20a-expression-via-activation-of-akt-and-erk-signals
#2
Hui-Ting Deng, Hai-Lin Liu, Bei-Bei Zhai, Kun Zhang, Guo-Ce Xu, Xue-Mei Peng, Qiang-Zhe Zhang, Lu-Yuan Li
Tumor necrosis factor superfamily-15 (TNFSF15; VEGI; TL1A) is a negative modulator of angiogenesis for blood vessel homeostasis and is produced by endothelial cells in a mature vasculature. It is known to be downregulated by vascular endothelial growth factor (VEGF), a major regulator of neovascularization but the mechanism of this interaction is unclear. Here we report that VEGF is able to stimulate the production of two microRNAs, miR-20a and miR-31, which directly target the 3'-UTR of TNFSF15. Additionally, we show that two VEGF-stimulated cell growth signals, Erk and Akt, are responsible for promoting the expression of miR-20a and miR-31...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097092/comparative-interactomics-for-virus-human-protein-protein-interactions-dna-viruses-versus-rna-viruses
#3
Saliha Durmuş, Kutlu Ö Ülgen
Viruses are obligatory intracellular pathogens and completely depend on their hosts for survival and reproduction. The strategies adopted by viruses to exploit host cell processes and to evade host immune systems during infections may differ largely with the type of the viral genetic material. An improved understanding of these viral infection mechanisms is only possible through a better understanding of the pathogen-host interactions (PHIs) that enable viruses to enter into the host cells and manipulate the cellular mechanisms to their own advantage...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097091/evaluation-of-novel-protease-inhibitors-against-darunavir-resistant-variants-of-hiv-type-1
#4
Mari Inoue, Daiki Oyama, Koushi Hidaka, Masanori Kameoka
HIV disease became a manageable chronic disease since combination antiretroviral therapy (cART) was introduced as the standard treatment regimen. However, the emergence of drug-resistant viruses is a major problem associated with cART. A phenotypic drug susceptibility test using a lentiviral vector was established and applied to evaluate new protease inhibitors (PIs). Lentiviral vectors representing a wild-type (WT-lentivector) and darunavir (DRV)-resistant HIV type 1 (HIV-1) (DRV (r)-lentivector) were generated...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097090/a-comparative-study-of-the-degradation-of-yeast-cyclins-cln1-and-cln2
#5
Inma Quilis, J Carlos Igual
The yeast cyclins Cln1 and Cln2 are very similar in both sequence and function, but some differences in their functionality and localization have been recently described. The control of Cln1 and Cln2 cellular levels is crucial for proper cell cycle initiation. In this work, we analyzed the degradation patterns of Cln1 and Cln2 in order to further investigate the possible differences between them. Both cyclins show the same half-life but, while Cln2 degradation depends on ubiquitin ligases SCF(G)(rr1) and SCF(C)(dc4), Cln1 is affected only by SCF(G)(rr1)...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097089/selective-inhibition-of-phosphodiesterases-4-5-and-9-induces-hsp20-phosphorylation-and-attenuates-amyloid-beta-1-42-mediated-cytotoxicity
#6
Ryan T Cameron, Ellanor Whiteley, Jon P Day, Anna I Parachikova, George S Baillie
Phosphodiesterase (PDE) inhibitors are currently under evaluation as agents that may facilitate the improvement of cognitive impairment associated with Alzheimer's disease. Our aim was to determine whether inhibitors of PDEs 4, 5 and 9 could alleviate the cytotoxic effects of amyloid beta 1-42 (Aβ1-42) via a mechanism involving the small heatshock protein HSP20. We show that inhibition of PDEs 4, 5 and 9 but not 3 induces the phosphorylation of HSP20 which, in turn, increases the colocalisation between the chaperone and Aβ1-42 to significantly decrease the toxic effect of the peptide...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097088/icariin-ameliorates-iga-nephropathy-by-inhibition-of-nuclear-factor-kappa-b-nlrp3-pathway
#7
Lei Zhang, Xing-Zhi Wang, Yu-Shu Li, Lei Zhang, Li-Rong Hao
Immunoglobulin A nephropathy (IgAN) is the most frequent form of glomerulonephritis, which is characterized by glomerular proliferation and renal inflammation. Icariin is a flavonoid from the Chinese herb Epimedium, and its anti-inflammatory effect has been reported. This study aimed to investigate the effects of icariin on the renal damage in IgAN rats and the mechanisms behind these effects. IgAN model was established in Sprague-Dawley rats by oral and intravenous immunization with bovine gamma-globulin for 12 weeks, and rats were treated with icariin from 12 to 18 weeks...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097087/identification-of-the-vascular-endothelial-growth-factor-signalling-pathway-by-quantitative-proteomic-analysis-of-rat-condylar-cartilage
#8
Liting Jiang, Yinyin Xie, Li Wei, Qi Zhou, Xing Shen, Xinquan Jiang, Yiming Gao
Angiogenesis mediated by vascular endothelial growth factor (VEGF) is known to play an important role in regulating cartilage remodelling and endochondral ossification. However, the details of how VEGF signalling mechanisms affect condyle remodelling in response to alterations in functional loading remains unclear. To explore this, eighty 16-day-old male SD rats were divided into two equal groups which were fed either a soft/powdery diet or a hard diet for 4 weeks; the stiffness of the diet results in alteration of mastication force and hence temporomandibular joint (TMJ) development...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097086/liver-x-receptor-agonist-t0901317-reverses-resistance-of-a549-human-lung-cancer-cells-to-egfr-tki-treatment
#9
Haixia Cao, Shaorong Yu, Dan Chen, Changwen Jing, Zhuo Wang, Rong Ma, Siwen Liu, Jie Ni, Jifeng Feng, Jianzhong Wu
Epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) is effective in lung cancer patients carrying sensitive EGFR mutations. In this study, we investigated if liver X receptor (LXR) agonist T0901317 could reverse the resistance of lung cancer cell lines A549 and H1650 to EGFR-TKI treatment. We found that T0901317 could make natural EGFR-TKI-resistant A549 human lung cancer cells sensitive to EGFR-TKI treatment and that this was dependent on LXRβ expression. However, T0901317 does not have a similar effect on another natural EGFR-TKI-resistant cell line H1650...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097085/interaction-with-adenylate-cyclase-toxin-from-bordetella-pertussis-affects-the-metal-binding-properties-of-calmodulin
#10
Tzvia I Springer, Corey C Emerson, Christian W Johns, Natosha L Finley
Adenylate cyclase toxin domain (CyaA-ACD) is a calmodulin (CaM)-dependent adenylate cyclase involved in Bordetella pertussis pathogenesis. Calcium (Ca(2+)) and magnesium (Mg(2+)) concentrations impact CaM-dependent CyaA-ACD activation, but the structural mechanisms remain unclear. In this study, NMR, dynamic light scattering, and native PAGE were used to probe Mg(2+)-induced transitions in CaM's conformation in the presence of CyaA-ACD. Mg(2+) binding was localized to sites I and II, while sites III and IV remained Ca(2+) loaded when CaM was bound to CyaA-ACD...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097084/the-calcium-dependent-protein-kinase-cdpk-and-cdpk-related-kinase-gene-families-in-hevea-brasiliensis-comparison-with-five-other-plant-species-in-structure-evolution-and-expression
#11
Xiao-Hu Xiao, Meng Yang, Jin-Lei Sui, Ji-Yan Qi, Yong-Jun Fang, Song-Nian Hu, Chao-Rong Tang
Calcium-dependent protein kinases (CDPKs or CPKs) play important roles in various physiological processes of plants, including growth and development, stress responses and hormone signaling. Although the CDPK gene family has been characterized in several model plants, little is known about this gene family in Hevea brasiliensis (the Para rubber tree). Here, we characterize the entire H. brasiliensis CDPK and CDPK-related kinase (CRK) gene families comprising 30 CDPK genes (HbCPK1 to 30) and nine CRK genes (HbCRK1 to 9)...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/27833855/overexpression-of-klhl23-protein-from-read-through-transcription-of-phospho2-klhl23-in-gastric-cancer-increases-cell-proliferation
#12
Eun-Seok Choi, Hanna Lee, Chang-Hun Lee, Sung-Ho Goh
Gene fusion, as a prototypical pathognomonic mutation, contributes to genome complexity, and the cis-transcription-induced gene fusions generated by read-through transcription of adjacent genes have been found to be important for tumor development. We screened read-through transcription events from stomach adenocarcinoma RNA-seq data and selected three candidates PHOSPHO2-KLHL23, RPL17-C18orf32, and PRR5-ARHGAP8, to assess their biological role in gastric cancer. The expression of all three read-through fusion transcripts was confirmed in gastric cancer cell lines and paired normal/tumor gastric cancer tissues by real-time quantitative reverse transcription polymerase chain reaction and their expression was found to be significantly higher in the tumor (P < 0...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27833854/human-promyelocytic-leukemia-protein-is-targeted-to-distinct-subnuclear-domains-in-plant-nuclei-and-colocalizes-with-nucleolar-constituents-in-a-sumo-dependent-manner
#13
Christian E Lamm, Myriam Scherer, Nina Reuter, Bushra Amin, Thomas Stamminger, Uwe Sonnewald
Eukaryotic nuclei are subdivided into subnuclear structures. Among the most prominent of these structures are the nucleolus and the PML nuclear bodies (PML-NBs). PML-NBs are spherical multiprotein aggregates of varying size localized in the interchromosomal area. PML-NB formation is dependent on the presence of the promyelocytic leukemia protein (PML) as well as on post-translational modification of core components by covalent attachment of the small ubiquitin-like modifier (SUMO). So far, PML-NBs as well as PML have been described in mammalian cells only, whereas no orthologs are known in the plant kingdom...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27833853/mouse-specific-up-regulation-of-ccnb1-expression-by-mir-199a-5p-in-keratinocyte
#14
Bong-Kyu Kim, Injung Kim, Ah-Reum Lee, Hye-In Yoo, Sungjoo Kim Yoon
MicroRNA (miRNA) are a class of single-stranded, small non-coding RNA that regulate various biological processes, including skin and hair cycle regulation, by modulating the expression of specific genes at the post-transcriptional level. Recently, several studies reported that miRNA directly or indirectly up-regulate target genes. Previously, we performed microarray analysis to identify the target genes of miR-199a-5p in a mouse skin keratinocyte cell line and detected more than 200 genes whose expression was significantly increased by miR-199a-5p overexpression (> 1...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27833852/molecular-cloning-heterologous-expression-and-enzymatic-characterization-of-lysoplasmalogen-specific-phospholipase-d-from-thermocrispum-sp
#15
Yusaku Matsumoto, Nana Kashiwabara, Takayuki Oyama, Kazutaka Murayama, Hideyuki Matsumoto, Shin-Ich Sakasegawa, Daisuke Sugimori
: Lysoplasmalogen (LyPls)-specific phospholipase D (LyPls-PLD) is an enzyme that catalyses the hydrolytic cleavage of the phosphoester bond of LyPls, releasing ethanolamine or choline, and 1-(1-alkenyl)-sn-glycero-3-phosphate (lysoplasmenic acid). Little is known about LyPls-PLD and metabolic pathways of plasmalogen (Pls). Reportedly, Pls levels in human serum/plasma correlate with several diseases such as Alzheimer's disease and arteriosclerosis as well as a variety of biological processes including apoptosis and cell signaling...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27833851/overexpression-of-cop9-signalosome-subunits-csn7a-and-csn7b-exerts-different-effects-on-adipogenic-differentiation
#16
Xiaohua Huang, Jürgen Ordemann, Johann Pratschke, Wolfgang Dubiel
The COP9 signalosome (CSN) is an essential regulator of cullin-RING-ubiquitin (Ub) ligases (CRLs), which ubiquitinate important cellular regulators and target them for degradation by the Ub proteasome system (UPS). The CSN exhibits deneddylating activity localized on subunit CSN5, which removes the ubiquitin-like protein Nedd8 from the cullins of CRLs. CSN-mediated deneddylation is an important step in the process of CRL remodeling, in which new substrate recognition units are incorporated into Ub ligases to meet changed requirements for proteolysis in cells...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27833850/baicalin-promoted-site-2-protease-and-not-site-1-protease-in-endoplasmic-reticulum-stress-induced-apoptosis-of-human-hepatocellular-carcinoma-cells
#17
Zhe Yu, Xin Luo, Chen Wang, Jianhong Ye, Shourong Liu, Lei Xie, Fei Wang, Jianfeng Bao
Baicalin (5,6-dihydroxy-7-o-glucuronide flavone) is an extract from the roots of Chinese herb Huang Qin (Scutellaria baicalensis Georgi) and is reported to have antioxidative, antiproliferative, anti-inflammatory, and anticancer activities. This study aimed to investigate the inhibitory effect of baicalin on human hepatocellular carcinoma (HCC) cells and the involvement of endoplasmic reticulum stress-induced cell apoptosis. Two human HCC cell lines, HepG2 and SMMC7221, were used in this study. The cells were incubated with baicalin solutions at various concentrations...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27833849/rrp15-affects-cell-cycle-proliferation-and-apoptosis-in-nih3t3-cells
#18
Tao Wu, Mei-Xia Ren, Guo-Ping Chen, Zheng-Ming Jin, Gang Wang
Riken 2810430M08 (hereinafter referred to as Rrp15) is a newly identified and reported gene from the mouse genome. In our previous work, we found that the gene had a relationship with the proliferation and activation of T cells. Rrp15 protein is highly homologous with RRP15 (budding yeast), which has an important role in ribosomal RNA processing. We explored the potential function of Rrp15 in apoptosis, cell proliferation, and its involvement with RNA in the nucleus. We constructed a knockdown of the Rrp15 gene in NIH3T3 cells and then performed real-time PCR, western blotting, flow cytometry, and immunofluorescence to determine the function of the Rrp15 gene...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27833848/neutral-ceramidase-enriched-exosomes-prevent-palmitic-acid-induced-insulin-resistance-in-h4iiec3-hepatocytes
#19
Qun Zhu, Rongping Zhu, Junfei Jin
Oversupply of free fatty acids such as palmitic acid (PA) from the portal vein may cause liver insulin resistance. Production of reactive oxygen species plays a pivotal role in PA-induced insulin resistance in H4IIEC3 hepatocytes. Recently, we found that exosomes secreted from INS-1 cells that were transfected with neutral ceramidase (NCDase) plasmids had raised NCDase activity; these NCDase-enriched exosomes could inhibit PA-induced INS-1 cell apoptosis. Here, we showed that PA reduced insulin-stimulated tyrosine phosphorylation of insulin receptor substrate 2 and decreased insulin-stimulated uptake of the fluorescent glucose analog 2-NBDG, confirming that insulin resistance occurred in PA-treated H4IIEC3 cells...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27833847/purification-and-characterization-of-an-extracellular-%C3%AE-glucosidase-from-sporothrix-schenckii
#20
Alicia Hernández-Guzmán, Alberto Flores-Martínez, Patricia Ponce-Noyola, Julio C Villagómez-Castro
An extracellular β-glucosidase (E.C. 3.2.1.21), induced by cellulose in the mycelial form of human pathogen fungus Sporothrix schenckii, was purified to homogeneity using hydroxyapatite (HAp) adsorption chromatography in batch and Sephacryl S200-HR size exclusion chromatography. The molecular mass of the purified enzyme was estimated to be 197 kDa by size exclusion chromatography with a subunit of 96.8 kDa determined by SDS/PAGE. The β-glucosidase exhibited optimum catalytic activity at pH 5.5/45 °C and was relatively stable for up to 24 h at 45 °C...
November 2016: FEBS Open Bio
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