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https://www.readbyqxmd.com/read/29161332/osteoglycin-inhibition-by-microrna-mir-155-impairs-myogenesis
#1
Paula Paccielli Freire, Sarah Santiloni Cury, Grasieli de Oliveira, Geysson Javier Fernandez, Leonardo Nazario Moraes, Bruno Oliveira da Silva Duran, Juarez Henrique Ferreira, César Seigi Fuziwara, Edna Teruko Kimura, Maeli Dal-Pai-Silva, Robson Francisco Carvalho
Skeletal myogenesis is a regulated process in which mononucleated cells, the myoblasts, undergo proliferation and differentiation. Upon differentiation, the cells align with each other, and subsequently fuse to form terminally differentiated multinucleated myotubes. Previous reports have identified the protein osteoglycin (Ogn) as an important component of the skeletal muscle secretome, which is expressed differentially during muscle development. However, the posttranscriptional regulation of Ogn by microRNAs during myogenesis is unknown...
2017: PloS One
https://www.readbyqxmd.com/read/29144439/cell-line-secretome-and-tumor-tissue-proteome-markers-for-early-detection-of-colorectal-cancer-a-systematic-review
#2
REVIEW
Megha Bhardwaj, Vanessa Erben, Petra Schrotz-King, Hermann Brenner
Objective: In order to find low abundant proteins secretome and tumor tissue proteome data have been explored in the last few years for the diagnosis of colorectal cancer (CRC). In this review we aim to summarize the results of studies evaluating markers derived from the secretome and tumor proteome for blood based detection of colorectal cancer. Methods: Observing the preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines PubMed and Web of Science databases were searched systematically for relevant studies published up to 18 July 2017...
November 16, 2017: Cancers
https://www.readbyqxmd.com/read/29119205/secretome-profile-analysis-of-multidrug-resistant-monodrug-resistant-and-drug-susceptible-mycobacterium-tuberculosis
#3
Chanyanuch Putim, Narumon Phaonakrop, Janthima Jaresitthikunchai, Ratikorn Gamngoen, Khajornsak Tragoolpua, Sorasak Intorasoot, Usanee Anukool, Chayada Sitthidet Tharincharoen, Ponrut Phunpae, Chatchai Tayapiwatana, Watchara Kasinrerk, Sittiruk Roytrakul, Bordin Butr-Indr
The emergence of drug-resistant tuberculosis has generated great concern in the control of tuberculosis and HIV/TB patients have established severe complications that are difficult to treat. Although, the gold standard of drug-susceptibility testing is highly accurate and efficient, it is time-consuming. Diagnostic biomarkers are, therefore, necessary in discriminating between infection from drug-resistant and drug-susceptible strains. One strategy that aids to effectively control tuberculosis is understanding the function of secreting proteins that mycobacteria use to manipulate the host cellular defenses...
November 8, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/29118330/molecular-spectrum-of-secretome-regulates-the-relative-hepatogenic-potential-of-mesenchymal-stem-cells-from-bone-marrow-and-dental-tissue
#4
Ajay Kumar, Vinod Kumar, Vidya Rattan, Vivekananda Jha, Arnab Pal, Shalmoli Bhattacharyya
Liver regeneration is a spontaneous process that occurs after liver injury, but acute liver failure is a complex and fatal disease which is difficult to treat. Cell-based therapies are promising alternative therapeutic approach for liver failure and different cell sources have been tested in this regard. We investigated the comparative hepatogenic potential of human bone marrow stem cells (BMSC) with stem cells derived from human dental pulp (DPSC), apical papilla (SCAP) and follicle (DFSC) during this study...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29114223/the-human-amnion-epithelial-cell-secretome-decreases-hepatic-fibrosis-in-mice-with-chronic-liver-fibrosis
#5
Majid Alhomrani, Jeanne Correia, Marcus Zavou, Bryan Leaw, Nathan Kuk, Rong Xu, Mohamed I Saad, Alexander Hodge, David W Greening, Rebecca Lim, William Sievert
Background: Hepatic stellate cells (HSCs) are the primary collagen-secreting cells in the liver. While HSCs are the major cell type involved in the pathogenesis of liver fibrosis, hepatic macrophages also play an important role in mediating fibrogenesis and fibrosis resolution. Previously, we observed a reduction in HSC activation, proliferation, and collagen synthesis following exposure to human amnion epithelial cells (hAEC) and hAEC-conditioned media (hAEC-CM). This suggested that specific factors secreted by hAEC might be effective in ameliorating liver fibrosis...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29109100/high-resolution-proteomic-analysis-of-the-cervical-cancer-cell-lines-secretome-documents-deregulation-of-multiple-proteases
#6
REVIEW
Kalliopi I Pappa, Georgia Kontostathi, Manousos Makridakis, Vasiliki Lygirou, Jerome Zoidakis, George Daskalakis, Nicholas P Anagnou
BACKGROUND: Oncogenic infection by HPV, eventually leads to cervical carcinogenesis, associated by deregulation of specific pathways and protein expression at the intracellular and secretome level. Thus, secretome analysis can elucidate the biological mechanisms contributing to cervical cancer. In the present study we systematically analyzed its constitution in four cervical cell lines employing a highly sensitive proteomic technology coupled with bioinformatics analysis. MATERIALS AND METHODS: LC/MS-MS proteomics and bioinformatics analysis were performed in the secretome of four informative cervical cell lines SiHa (HPV16(+)), HeLa (HPV18(+)), C33A (HPV(-)) and HCK1T (normal)...
November 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/29106524/cardiac-myocyte-%C3%AE-3-adrenergic-receptors-prevent-myocardial-fibrosis-by-modulating-oxidant-stress-dependent-paracrine-signaling
#7
Nerea Hermida, Lauriane Michel, Hrag Esfahani, Emilie Dubois-Deruy, Joanna Hammond, Caroline Bouzin, Andreas Markl, Henri Colin, Anne Van Steenbergen, Christophe De Meester, Christophe Beauloye, Sandrine Horman, Xiaoke Yin, Manuel Mayr, Jean-Luc Balligand
Aims: Human and mouse cardiac beta3-adrenergic receptors (beta3AR) exert antipathetic effects to those of beta1-2AR stimulation. We examined their role in modulating myocardial remodelling, particularly fibrosis in response to haemodynamic stress. Methods and results: Mice with cardiac myocyte-specific expression of beta3AR (ADRB3-tg) or tamoxifen-inducible homozygous deletion (c-Adrb3-ko, with loxP-targeted Adrb3) were submitted to transaortic constriction. A superfusion assay was used for proteomic analysis of paracrine mediators between beta3AR-expressing cardiac myocytes and cardiac fibroblasts cultured separately...
July 6, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29101181/endothelial-dysfunction-is-a-super-inducer-of-syndecan-4-fibrogenic-role-of-its-ectodomain
#8
Mark Lipphardt, Jong W Song, Brian B Ratliff, Hassan Dihazi, Gerhard A Müller, Michael S Goligorsky
Syndecan 4 (Synd4) is a member of membrane-spanning, glycocalyx-forming proteoglycan family. It has been suggested that Synd4 participates in renal fibrosis. We compared wild type and fibrosis-prone endothelial sirtuin1-deficient (Sirt1(endo)-/-) mice, the latter being a model of global endothelial dysfunction. We performed mass-spectrometry analysis, which revealed that Synd4 was highly enriched in the secretome of renal microvascular endothelial cells (RMVEC) obtained from Sirt1(endo)-/- mice upon stimulation with TGFβ1; notably all detectable peptides were confined to the ectodomain of Synd4...
November 3, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29073283/identification-of-novel-substrates-of-shigella-t3sa-through-analysis-of-its-virulence-plasmid-encoded-secretome
#9
Laurie Pinaud, Mariana L Ferrari, Robin Friedman, Nico Jehmlich, Martin von Bergen, Armelle Phalipon, Philippe J Sansonetti, François-Xavier Campbell-Valois
Many human Gram-negative bacterial pathogens express a Type Three Secretion Apparatus (T3SA), including among the most notorious Shigella spp., Salmonella enterica, Yersinia enterocolitica and enteropathogenic Escherichia coli (EPEC). These bacteria express on their surface multiple copies of the T3SA that mediate the delivery into host cells of specific protein substrates critical to pathogenesis. Shigella spp. are Gram-negative bacterial pathogens responsible for human bacillary dysentery. The effector function of several Shigella T3SA substrates has largely been studied but their potential cellular targets are far from having been comprehensively delineated...
2017: PloS One
https://www.readbyqxmd.com/read/29053925/mesenchymal-stem-cell-secretome-improves-tendon-cell-viability-in-vitro-and-tendon-bone-healing-in-vivo-when-a-tissue-engineering-strategy-is-used-in-a-rat-model-of-chronic-massive-rotator-cuff-tear
#10
Nuno Sevivas, Fábio Gabriel Teixeira, Raquel Portugal, Bruno Direito-Santos, João Espregueira-Mendes, Filipe J Oliveira, Rui F Silva, Nuno Sousa, Wan Ting Sow, Luong T H Nguyen, Kee Woei Ng, António J Salgado
BACKGROUND: Massive rotator cuff tears (MRCTs) represent a major clinical concern, especially when degeneration and chronicity are involved, which highly compromise healing capacity. PURPOSE: To study the effect of the secretome of mesenchymal stem cells (MSCs) on tendon cells (TCs) followed by the combination of these activated TCs with an electrospun keratin-based scaffold to develop a tissue engineering strategy to improve tendon-bone interface (TBi) healing in a chronic MRCT rat model...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29029698/intrinsic-disorder-is-a-common-structural-characteristic-of-rxlr-effectors-in-oomycete-pathogens
#11
Danyu Shen, Qingling Li, Peng Sun, Meixiang Zhang, Daolong Dou
Intrinsic disorder is common in nature and has been studied to play important biological roles in bacterial effectors. However, disorder in oomycete RxLR effectors has not been investigated previously and the roles are unknown. Our results of PONDR VL-XT disorder analysis showed that predicted oomycete RxLR effectors were significantly more disordered than other effectors and secretome. The distribution of disorder content presented preference that RxLR-dEER regions were enriched in disordered residues, suggesting potential role of disorder in effector translocation...
November 2017: Fungal Biology
https://www.readbyqxmd.com/read/28986379/functional-analysis-of-the-glucan-degradation-locus-gdl-in-caldicellulosiruptor-bescii-reveals-essential-roles-of-component-glycoside-hydrolases-in-plant-biomass-deconstruction
#12
Jonathan M Conway, Bennett S McKinley, Nathaniel L Seals, Diana Hernandez, Piyum A Khatibi, Suresh Poudel, Richard J Giannone, Robert L Hettich, Amanda M Williams-Rhaesa, Gina L Lipscomb, Michael W W Adams, Robert M Kelly
The ability to hydrolyze microcrystalline cellulose is an uncommon feature in the microbial world, but one that can be exploited for conversion of lignocellulosic feedstocks into bio-based fuels and chemicals. Understanding the physiological and biochemical mechanisms by which microorganisms deconstruct cellulosic material is key to achieving this objective. The Glucan Degradation Locus (GDL) in the genomes of extremely thermophilic Caldicellulosiruptor species encodes polysaccharide lyases (PLs), unique cellulose binding proteins (tāpirins), and putative post-translational modifying enzymes, in addition to multi-domain, multi-functional glycoside hydrolases (GHs), thereby representing an alternative paradigm for plant biomass degradation, as compared to fungal or cellulosomal systems...
October 6, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28972996/secretome-analysis-of-trypanosoma-cruzi-by-proteomics-studies
#13
Jean-Yves Brossas, Julián Ernesto Nicolás Gulin, Margarita Maria Catalina Bisio, Manuel Chapelle, Carine Marinach-Patrice, Mallaury Bordessoules, George Palazon Ruiz, Jeremy Vion, Luc Paris, Jaime Altcheh, Dominique Mazier
BACKGROUND: Chagas disease is a debilitating often fatal disease resulting from infection by the protozoan parasite Trypanosoma cruzi. Chagas disease is endemic in 21 countries of the Americas, and it is an emerging disease in other countries as a result of migration. Given the chronic nature of the infection where intracellular parasites persist for years, the diagnosis of T. cruzi by direct detection is difficult, whereas serologic tests though sensitive may yield false-positive results...
2017: PloS One
https://www.readbyqxmd.com/read/28969644/crosstalk-between-glial-and-glioblastoma-cells-triggers-the-go-or-grow-phenotype-of-tumor-cells
#14
Ana Isabel Oliveira, Sandra I Anjo, Joana Vieira de Castro, Sofia C Serra, António J Salgado, Bruno Manadas, Bruno M Costa
BACKGROUND: Glioblastoma (GBM), the most malignant primary brain tumor, leads to poor and unpredictable clinical outcomes. Recent studies showed the tumor microenvironment has a critical role in regulating tumor growth by establishing a complex network of interactions with tumor cells. In this context, we investigated how GBM cells modulate resident glial cells, particularly their paracrine activity, and how this modulation can influence back on the malignant phenotype of GBM cells. METHODS: Conditioned media (CM) of primary mouse glial cultures unexposed (unprimed) or exposed (primed) to the secretome of GL261 GBM cells were analyzed by proteomic analysis...
October 2, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28969635/impact-of-mesenchymal-stem-cells-secretome-on-glioblastoma-pathophysiology
#15
Joana Vieira de Castro, Eduardo D Gomes, Sara Granja, Sandra I Anjo, Fátima Baltazar, Bruno Manadas, António J Salgado, Bruno M Costa
BACKGROUND: Glioblastoma (GBM) is a highly aggressive primary brain cancer, for which curative therapies are not available. An emerging therapeutic approach suggested to have potential to target malignant gliomas has been based on the use of multipotent mesenchymal stem cells (MSCs), either unmodified or engineered to deliver anticancer therapeutic agents, as these cells present an intrinsic capacity to migrate towards malignant tumors. Nevertheless, it is still controversial whether this innate tropism of MSCs towards the tumor area is associated with cancer promotion or suppression...
October 2, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28967788/gaining-insights-into-cancer-biology-through-exploration-of-the-cancer-secretome-using-proteomic-and-bioinformatic-tools
#16
Elena Papaleo, Irina Gromova, Pavel Gromov
Tumor-associated proteins released by cancer cells and by tumor stroma cells, referred as 'cancer secretome', represent a valuable resource for discovery of potential cancer biomarkers. The last decade was marked by a great increase in number of studies focused on various aspects of cancer secretome including, composition and identification of components externalized by malignant cells and by the components of tumor microenvironment. Areas covered: Here, we provide an overview of achievements in the proteomic analysis of the cancer secretome, elicited through the tumor-associated interstitial fluid recovered from malignant tissues ex vivo or the protein component of conditioned media obtained from cultured cancer cells in vitro...
November 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28944300/proteomic-analysis-of-extracellular-vesicles-from-a-plasmodium-falciparum-kenyan-clinical-isolate-defines-a-core-parasite-secretome
#17
Abdirahman Abdi, Lu Yu, David Goulding, Martin K Rono, Philip Bejon, Jyoti Choudhary, Julian Rayner
BACKGROUND: Many pathogens secrete effector molecules to subvert host immune responses, to acquire nutrients, and/or to prepare host cells for invasion. One of the ways that effector molecules are secreted is through extracellular vesicles (EVs) such as exosomes. Recently, the malaria parasite P. falciparum has been shown to produce EVs that can mediate transfer of genetic material between parasites and induce sexual commitment. Characterizing the content of these vesicles may improve our understanding of P...
2017: Wellcome Open Research
https://www.readbyqxmd.com/read/28931551/emc10-endoplasmic-reticulum-membrane-protein-complex-subunit-10-is-a-bone-marrow-derived-angiogenic-growth-factor-promoting-tissue-repair-after-myocardial-infarction
#18
Marc R Reboll, Mortimer Korf-Klingebiel, Stefanie Klede, Felix Polten, Eva Brinkmann, Ines Reimann, Hans-Joachim Schönfeld, Maria Bobadilla, Jan Faix, George Kensah, Ina Gruh, Michael Klintschar, Matthias Gaestel, Hans W Niessen, Andreas Pich, Johann Bauersachs, Joseph A Gogos, Yong Wang, Kai C Wollert
BACKGROUND: Clinical trials of bone marrow cell-based therapies after acute myocardial infarction (MI) have produced mostly neutral results. Treatment with specific bone marrow cell-derived secreted proteins may provide an alternative biological approach to improving tissue repair and heart function after MI. We recently performed a bioinformatic secretome analysis in bone marrow cells from patients with acute MI and discovered a poorly characterized secreted protein, EMC10 (endoplasmic reticulum membrane protein complex subunit 10), showing activity in an angiogenic screen...
November 7, 2017: Circulation
https://www.readbyqxmd.com/read/28919884/secretome-of-intestinal-bacilli-a-natural-guard-against-pathologies
#19
REVIEW
Olga N Ilinskaya, Vera V Ulyanova, Dina R Yarullina, Ilgiz G Gataullin
Current studies of human gut microbiome usually do not consider the special functional role of transient microbiota, although some of its members remain in the host for a long time and produce broad spectrum of biologically active substances. Getting into the gastrointestinal tract (GIT) with food, water and probiotic preparations, two representatives of Bacilli class, genera Bacillus and Lactobacillus, colonize epithelium blurring the boundaries between resident and transient microbiota. Despite their minor proportion in the microbiome composition, these bacteria can significantly affect both the intestinal microbiota and the entire body thanks to a wide range of secreted compounds...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28903359/expression-of-sialyl-tn-sugar-antigen-in-bladder-cancer-cells-affects-response-to-bacillus-calmette-gu%C3%A3-rin-bcg-and-to-oxidative-damage
#20
Paulo F Severino, Mariana Silva, Mylene Carrascal, Nadia Malagolini, Mariella Chiricolo, Giulia Venturi, Annalisa Astolfi, Mariangela Catera, Paula A Videira, Fabio Dall'Olio
The sialyl-Tn (sTn) antigen is an O-linked carbohydrate chain aberrantly expressed in bladder cancer (BC), whose biosynthesis is mainly controlled by the sialyltransferase ST6GALNAC1. Treatment with Bacillus Calmette-Guérin (BCG) is the most effective adjuvant immunotherapy for superficial BC but one third of the patients fail to respond. A poorly understood correlation between the expression of sTn and BC patient's response to BCG was previously observed. By analyzing tumor tissues, we showed that patients with high ST6GALNAC1 and IL-6 mRNA expression were BCG responders...
August 15, 2017: Oncotarget
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