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Anastasia K Atabekova, Anna V Pankratenko, Svetlana S Makarova, Ekaterina A Lazareva, Robert A Owens, Andrey G Solovyev, Sergey Y Morozov
Human B-cell receptor-associated protein BAP31 (HsBAP31) is the endoplasmic reticulum-resident protein involved in protein sorting and transport as well as pro-apoptotic signaling. Plant orthologs of HsBAP31 termed 'plant BAP-like proteins' (PBL proteins) have thus far remained unstudied. Recently, the PBL protein from Nicotiana tabacum (NtPBL) was identified as an interactor of Nt-4/1, a plant protein known to interact with plant virus movement proteins and affect the long-distance transport of potato spindle tuber viroid (PSTVd) via the phloem...
October 19, 2016: Biochimie
Danielle E Jenkins, Dharshini Sreenivasan, Fiona Carman, Samal Babru, Lee E Eiden, Stephen J Bunn
The pro-inflammatory cytokines, tumor necrosis factor-α and interleukin-1β/α modulate catecholamine secretion, and long-term gene regulation, in chromaffin cells of the adrenal medulla. Since interleukin-6 (IL6) also plays a key integrative role during inflammation, we have examined its ability to affect both tyrosine hydroxylase activity and adrenomedullary gene transcription in cultured bovine chromaffin cells. IL6 caused acute tyrosine/threonine phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2), and serine/tyrosine phosphorylation of signal transducer and activator of transcription 3 (STAT3)...
October 22, 2016: Journal of Neurochemistry
Cho-Ming Chao, Faady Yahya, Alena Moiseenko, Caterina Tiozzo, Amit Shrestha, Negah Ahmadvand, Elie El Agha, Jennifer Quantius, Salma Dilai, Vahid Kheirollahi, Matthew Jones, Jochen Wilhem, Gianni Carraro, Harald Ehrhardt, Klaus-Peter Zimmer, Guillermo Barreto, Katrin Ahlbrecht, Rory E Morty, Susanne Herold, Rosanna G Abellar, Werner Seeger, Ralph Schermuly, Jin-San Zhang, Parviz Minoo, Saverio Bellusci
Inflammation-induced FGF10 protein deficiency is associated with bronchopulmonary dysplasia (BPD), a chronic lung disease of prematurely born infants characterized by arrested alveolar development. So far, experimental evidence for a direct role of FGF10 in lung disease is lacking. Using the hyperoxia-induced neonatal lung injury as a mouse model of BPD, the impact of Fgf10 deficiency in Fgf10(+/-) versus Fgf10(+/+) pups was investigated. In normoxia, no lethality of Fgf10(+/+) or Fgf10(+/-) pups was observed...
October 22, 2016: Journal of Pathology
Amanda S Harper-Leatherman, Jean Marie Wallace, Debra R Rolison
Sol-gel-derived aerogels are three-dimensional, nanoscale materials that combine large surface area with high porosity. These traits make them useful for any rate-critical chemical process, particularly sensing or electrochemical applications, once physical or chemical moieties are incorporated into the gels to add their functionality to the ultraporous scaffold. Incorporating biomolecules into aerogels, other than such rugged species as lipases or cellulose, has been challenging due to the inability of most biomolecules to remain structurally intact within the gels during the necessary supercritical fluid (SCF) processing...
2017: Methods in Molecular Biology
X-N Ma, C-X Ma, W-G Shi, J Zhou, H-P Ma, Y-H Gao, C J Xian, K-M Chen
OBJECTIVE: Icaritin, one effective metabolite of Herba Epimedii-derived flavonoid icariin, has a strong osteogenic activity. However, its action mechanism remains unclear. Since primary cilia have been shown to play a pivotal role in regulating the osteogenesis, we hypothesized primary cilia are indispensable in mediating icaritin osteogenic effect. MATERIALS AND METHODS: Primary rat calvarial osteoblasts were transfected with siRNA1 targeting intraflagellar transport protein 88 (IFT88), a protein required for ciliogenesis, to prevent formation of primary cilium and were treated with 10(-6) M icaritin...
October 21, 2016: Journal of Endocrinological Investigation
Zhiwei Feng, Guanxing Hu, Shifan Ma, Xiang-Qun Xie
No abstract text is available yet for this article.
October 21, 2016: AAPS Journal
Liuyu Wu, Xiao Xiong, Xuming Wang, Tianrong Xin, Jing Wang, Zhiwen Zou, Bin Xia
The bluish yellow lappet moth, Trabala vishnou guttata is an extraordinarily important pest in China. The complete mitochondrial genome is sequenced and determined firstly, which is based on traditional PCR amplification and primer walking methods with a length of 15,281 bp, including 13 protein-coding (PCG) genes, 22 transfer RNA (rRNA) genes, two ribosomal RNA (tRNA) genes, and an A + T-rich region. The gene order and orientation of the T. vishnou guttata mitogenome were identical to the other sequenced Lasiocampidae species...
October 21, 2016: Genetica
Wilfried Dinh, Barbara Albrecht-Küpper, Mihai Gheorghiade, Adriaan A Voors, Michael van der Laan, Hani N Sabbah
Adenosine exerts a variety of physiological effects by binding to cell surface G-protein-coupled receptor subtypes, namely, A1, A2a, A2b, and A3. The central physiological role of adenosine is to preclude tissue injury and promote repair in response to stress. In the heart, adenosine acts as a cytoprotective modulator, linking cardiac function to metabolic demand predominantly via activation of adenosine A1 receptors (A1Rs), which leads to inhibition of adenylate cyclase activity, modulation of protein kinase C, and opening of ATP-sensitive potassium channels...
October 22, 2016: Handbook of Experimental Pharmacology
Hung-Yi Liu, Tanja Greene, Tsai-Yu Lin, Camron S Dawes, Murray Korc, Chien-Chi Lin
: The complex network of biochemical and biophysical cues in the pancreatic desmoplasia not only presents challenges to the fundamental understanding of tumor progression, but also hinders the development of therapeutic strategies against pancreatic cancer. Residing in the desmoplasia, pancreatic stellate cells (PSCs) are the major stromal cells affecting the growth and metastasis of pancreatic cancer cells by means of paracrine effects and extracellular matrix protein deposition. PSCs remain in a quiescent/dormant state until they are 'activated' by various environmental cues...
October 18, 2016: Acta Biomaterialia
Ting Hu, Qilin Huang, Kahing Wong, Hong Yang
Four polysaccharide fractions, LRP-1, LRP-2, LRP-3 and LRP-4 were extracted stepwise from Lignosus rhinocerotis sclerotia with distilled water at 25, 95, 120°C and 1.0M NaOH solution at 4°C. Their structure, molecular size and chain conformation were clarified using SEC-MALLS-RI, GC, FT-IR and UV-VIS. Furthermore, their immunomodulatory activities were evaluated by the model of cyclophosphamide (Cy)-induced immunosuppression. The LRP-1 and LRP-2 were polysaccharide-protein complexes (46-68% β-D-glucan and 27-48% protein), while LRP-3 and LRP-4 were absolutely composed of β-D-glucose...
October 18, 2016: International Journal of Biological Macromolecules
Luisa Iacovelli, Luisa Di Menna, Daniel Peterlik, Christina Stangl, Rosamaria Orlando, Gemma Molinaro, Antonio De Blasi, Valeria Bruno, Giuseppe Battaglia, Peter J Flor, Nicole Uschold-Schmidt, Ferdinando Nicoletti
We studied the interaction between mGlu7 and α1-adrenergic receptors in heterologous expression systems, brain slices, and living animals. L-2-Amino-4-phosphonobutanoate (L-AP4), and l-serine-O-phosphate (L-SOP), which activate group III mGlu receptors, restrained the stimulation of polyphosphoinositide (PI) hydrolysis induced by the α1-adrenergic receptor agonist, phenylephrine, in HEK 293 cells co-expressing α1-adrenergic and mGlu7 receptors. The inibitory action of L-AP4 was abrogated by (i) the mGlu7 receptor antagonist, XAP044; (ii) the C-terminal portion of type-2 G protein coupled receptor kinase; and (iii) the MAP kinase inhibitors, UO126 and PD98059...
October 18, 2016: Neuropharmacology
Liqing Wang, Suresh Kumar, Satinder Dahiya, Feng Wang, Jian Wu, Kheng Newick, Rongxiang Han, Arabinda Samanta, Ulf H Beier, Tatiana Akimova, Tricia R Bhatti, Benjamin Nicholson, Mathew P Kodrasov, Saket Agarwal, David E Sterner, Wei Gu, Joseph Weinstock, Tauseef R Butt, Steven M Albelda, Wayne W Hancock
Foxp3+ T-regulatory (Treg) cells are known to suppress protective host immune responses to a wide variety of solid tumors, but their therapeutic targeting is largely restricted to their transient depletion or "secondary" modulation, e.g. using anti-CTLA-4 monoclonal antibody. Our ongoing studies of the post-translational modifications that regulate Foxp3 demonstrated that the histone/protein acetyltransferase, Tip60, plays a dominant role in promoting acetylation, dimerization and function in Treg cells. We now show that the ubiquitin-specific protease, Usp7, controls Treg function largely by stabilizing the expression and promoting the multimerization of Tip60 and Foxp3...
October 15, 2016: EBioMedicine
Kristine Moltu, Karen Henjum, Nikolaus G Oberprieler, Bjørn A Bjørnbeth, Kjetil Taskén
Patients with colorectal cancer (CRC) have been shown to have elevated levels of circulating prostaglandin E2(PGE2) which promotes cancer progression and suppresses T-cell immune responses. In this study we evaluated whether signaling responses in T lymphocytes obtained from peripheral blood of CRC patients were affected by the sustained exposure to increased levels of PGE2. The phosphorylation status of an extended panel of proteins involved in downstream signaling cascades in T cells was profiled at a single cell level both in naïve and antigen-experienced cells after triggering T cell-, prostaglandin- and interleukin-2 receptors...
October 18, 2016: Human Immunology
Vanessa D Ortiz, Alexandre L de Castro, Cristina Campos, Rafael O Fernandes, Jéssica H P Bonetto, Rafaela Siqueira, Adriana Conzatti, Tânia R G Fernandes, Adriane Belló-Klein, Alex S R Araujo
Studies have shown a cardioprotective role of thyroid hormones (THs) in cardiac remodeling after acute myocardial infarction (MI). However, there is no data in the literature examining the influence of TH administration on the aortic tissue in an animal model of MI. This study aimed to evaluate the effects of thyroid hormones on the aorta after MI. Male Wistar rats were divided into a sham group (SHAM), infarcted group (AMI), sham+TH (SHAMT) and AMI+TH (AMIT). After MI, the animals received T3 and T4 (2 and 8μg/100g/day, respectively) by oral gavage for 12 days...
October 18, 2016: European Journal of Pharmacology
Marjan Hosseini, Hamed Kolangi Miandare, Seyed Hossein Hoseinifar, Peyman Yarahmadi
The objective of the present study was to investigate the effect of dietary Lactobacillus acidophilus on skin mucus protein pattern, immune and appetite related genes expression as well as growth performance in gold fish (Carassius auratus gibelio). Three hundred healthy gold fish (2.5 ± 0.05) juveniles were randomly distributed in 12 glass aquariums (400-L; 25 fish per aquaria) and fed experimental diets contain different levels of L. acidophilus (0, 1.5 × 10(8), 3 × 10(8) and 6 × 10(8)) for 8 weeks...
October 18, 2016: Fish & Shellfish Immunology
Gloria Isani, Enea Ferlizza, Aurora Cuoghi, Elisa Bellei, Emanuela Monari, Barbara Bianchin Butina, Carolina Castagnetti
Characterisation of the physiologic equine amniotic fluid (AF) proteome is a prerequisite to study its changes during diseases and discover new biomarkers. The aim of this study was to identify by a proteomic approach the most abundant proteins of equine AF. AF samples were collected at parturition from 24 healthy mares that delivered healthy foals. All samples were subjected to sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) on 4-12% gels. A pool of the 24 samples, after SDS-PAGE, was cut in 25 slices, trypsin-digested and analysed by mass spectrometry (MS) for protein identification...
October 11, 2016: Animal Reproduction Science
Yangyang Gan, Quanqing Zhang, Yajing Chen, Yiman Zhao, Zhichao Xiong, Lingyi Zhang, Weibing Zhang
Highly sensitive and selective enrichment of endogenous peptides or proteins from complex bio-system takes a significant important place to the proteomic. In this work, a unique Fe3O4@2SiO2@mSiO2-C nanomaterial was synthesized, contributing to the separation and enrichment of low concentration peptides from complex mixture. The highly ordered mesoporous carbon structure render the nanospheres with unique properties of strongly connected pore channels, strong hydrophobic properties, high specific surface area (254...
December 1, 2016: Talanta
Peter G K Clark, Darren J Dixon, Paul E Brennan
The bromodomain family of proteins are 'readers' of acetylated lysines of histones, a key mark in the epigenetic code of gene regulation. Without high quality chemical probes with which to study these proteins, their biological function, and potential use in therapeutics, remains unknown. Recently, a number of chemical ligands were reported for the previously unprobed bromodomain proteins BRD7 and BRD9. Herein the development and characterisation of probes against these proteins is detailed, including the preliminary biological activity of BRD7 and BRD9 assessed using these probes...
March 2016: Drug Discovery Today. Technologies
Jamel Meslamani, Steven G Smith, Roberto Sanchez, Ming-Ming Zhou
Bromodomains are conserved structural modules responsible for recognizing acetylated-lysine residues on histone tails and other transcription-associated proteins, such as transcription factors and co-factors. Owing to their important functions in the regulation of ordered gene transcription in chromatin, bromodomains of the BET family proteins have recently been shown as druggable targets for a wide array of human diseases, including cancer and inflammation. Here we review the structural and functional features of the bromodomains and their small-molecule inhibitors...
March 2016: Drug Discovery Today. Technologies
Amber A Bokhari, Laura R Lee, Dewayne Raboteau, Jane Turbov, Isabel V Rodriguez, J Wesley Pike, Chad A Hamilton, G Larry Maxwell, Gustavo C Rodriguez, Viqar Syed
Here, we evaluated the expression of CYP24A1, a protein that inactivates vitamin D in tissues. CYP24A1 expression was increased in advanced-stage endometrial tumors compared to normal tissues. Similarly, endometrial cancer cells expressed higher levels of CYP24A1 than immortalized endometrial epithelial cells. RT-PCR and Western blotting were used to examine CYP24A1 mRNA and protein levels in endometrial cancer cells after 8, 24, 72, and 120 h of exposure to progesterone, progestin derivatives and calcitriol, either alone or in combination...
October 18, 2016: Oncotarget
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