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macrophage extracellular vesicles proteomics

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https://www.readbyqxmd.com/read/29696081/proteomic-analysis-reveals-different-composition-of-extracellular-vesicles-released-by-two-trypanosoma-cruzi-strains-associated-with-their-distinct-interaction-with-host-cells
#1
Kleber Silva Ribeiro, Camilla Ioshida Vasconcellos, Rodrigo Pedro Soares, Maria Tays Mendes, Cameron C Ellis, Marcela Aguilera-Flores, Igor Correia de Almeida, Sergio Schenkman, Leo Kei Iwai, Ana Claudia Torrecilhas
Trypanosoma cruzi , the aetiologic agent of Chagas disease, releases vesicles containing a wide range of surface molecules known to affect the host immunological responses and the cellular infectivity. Here, we compared the secretome of two distinct strains (Y and YuYu) of T. cruzi , which were previously shown to differentially modulate host innate and acquired immune responses. Tissue culture-derived trypomastigotes of both strains secreted extracellular vesicles (EVs), as demonstrated by electron scanning microscopy...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29659599/profiling-extracellular-vesicle-release-by-the-filarial-nematode-brugia-malayi-reveals-sex-specific-differences-in-cargo-and-a-sensitivity-to-ivermectin
#2
Hiruni Harischandra, Wang Yuan, Hannah J Loghry, Mostafa Zamanian, Michael J Kimber
The filarial nematode Brugia malayi is an etiological agent of Lymphatic Filariasis. The capability of B. malayi and other parasitic nematodes to modulate host biology is recognized but the mechanisms by which such manipulation occurs are obscure. An emerging paradigm is the release of parasite-derived extracellular vesicles (EV) containing bioactive proteins and small RNA species that allow secretion of parasite effector molecules and their potential trafficking to host tissues. We have previously described EV release from the infectious L3 stage B...
April 16, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29553831/exosomes-from-asbestos-exposed-cells-modulate-gene-expression-in-mesothelial-cells
#3
Phillip Munson, Ying-Wai Lam, Julie Dragon, Maximilian MacPherson, Arti Shukla
Asbestos exposure is a determinate cause of many diseases, such as mesothelioma, fibrosis, and lung cancer, and poses a major human health hazard. At this time, there are no identified biomarkers to demarcate asbestos exposure before the presentation of disease and symptoms, and there is only limited understanding of the underlying biology that governs asbestos-induced disease. In our study, we used exosomes, 30-140 nm extracellular vesicles, to gain insight into these knowledge gaps. As inhaled asbestos is first encountered by lung epithelial cells and macrophages, we hypothesize that asbestos-exposed cells secrete exosomes with signature proteomic cargo that can alter the gene expression of mesothelial cells, contributing to disease outcomes like mesothelioma...
March 19, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29535716/roles-of-macrophage-exosomes-in-immune-response-to-calcium-oxalate-monohydrate-crystals
#4
Nilubon Singhto, Rattiyaporn Kanlaya, Angkhana Nilnumkhum, Visith Thongboonkerd
In kidney stone disease, macrophages secrete various mediators via classical secretory pathway and cause renal interstitial inflammation. However, whether their extracellular vesicles, particularly exosomes, are involved in kidney stone pathogenesis remained unknown. This study investigated alterations in exosomal proteome of U937-derived macrophages (by phorbol-12-myristate-13-acetate activation) after exposure to calcium oxalate monohydrate (COM) crystals for 16-h using 2-DE-based proteomics approach. Six significantly altered proteins in COM-treated exosomes were successfully identified by nanoscale liquid chromatography-electrospray ionization-electron transfer dissociation tandem mass spectrometry as proteins involved mainly in immune processes, including T-cell activation and homeostasis, Fcγ receptor-mediated phagocytosis, interferon-γ (IFN-γ) regulation, and cell migration/movement...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29531019/paclitaxel-treatment-and-pc1-3-knockdown-in-macrophages-is-a-promising-anti-glioma-strategy-as-revealed-by-proteomics-and-cytotoxicity-studies
#5
Marie Duhamel, Mélanie Rose, Franck Rodet, Adriana-Nathalia Murgoci, Lea Zografidou, Anne Régnier-Vigouroux, Fabien Vanden Abeele, Firas Kobeissy, Serge Nataf, Laurent Pays, Maxence Wisztorski, Dasa Cizkova, Isabelle Fournier, Michel Salzet
High grade gliomas are the most common brain tumors in adult. These tumors are characterized by a high infiltration in microglial cells and macrophages. The immunosuppressive tumor environment is known to orient immune cells towards a pro-tumoral and anti-inflammatory phenotype. Therefore, the current challenge for cancer therapy is to find a way to reorient macrophages toward an anti-tumoral phenotype. Previously, we demonstrated that macrophages secreted anti-tumoral factors when they were invalidated for the proprotein converstase 1/3 (PC1/3) and treated with LPS...
March 12, 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29114223/the-human-amnion-epithelial-cell-secretome-decreases-hepatic-fibrosis-in-mice-with-chronic-liver-fibrosis
#6
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/28536169/inflammatory-stroke-extracellular-vesicles-induce-macrophage-activation
#7
Yvonne Couch, Naveed Akbar, Simon Davis, Roman Fischer, Alex M Dickens, Ain A Neuhaus, Annette I Burgess, Peter M Rothwell, Alastair M Buchan
BACKGROUND AND PURPOSE: Extracellular vesicles (EVs) are protein-lipid complexes released from cells, as well as actively exocytosed, as part of normal physiology, but also during pathological processes such as those occurring during a stroke. Our aim was to determine the inflammatory potential of stroke EVs. METHODS: EVs were quantified and analyzed in the sera of patients after an acute stroke (<24 hours; OXVASC [Oxford Vascular Study]). Isolated EV fractions were subjected to untargeted proteomic analysis by liquid chromatography mass-spectrometry/mass-spectrometry and then applied to macrophages in culture to investigate inflammatory gene expression...
August 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28196878/global-characterization-of-protein-secretion-from-human-macrophages-following-non-canonical-caspase-4-5-inflammasome-activation
#8
Martina B Lorey, Katriina Rossi, Kari K Eklund, Tuula A Nyman, Sampsa Matikainen
Gram-negative bacteria are associated with a wide spectrum of infectious diseases in humans. Inflammasomes are cytosolic protein complexes that are assembled when the cell encounters pathogens or other harmful agents. The non-canonical caspase-4/5 inflammasome is activated by Gram-negative bacteria-derived lipopolysaccharide (LPS) and by endogenous oxidized phospholipids. Protein secretion is a critical component of the innate immune response. Here, we have used label-free quantitative proteomics to characterize global protein secretion in response to non-canonical inflammasome activation upon intracellular LPS recognition in human primary macrophages...
April 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/27792649/macrophage-foam-cell-derived-extracellular-vesicles-promote-vascular-smooth-muscle-cell-migration-and-adhesion
#9
Chenguang Niu, Xu Wang, Mingming Zhao, Tanxi Cai, Peibin Liu, Jizhao Li, Belinda Willard, Lingyun Zu, Enchen Zhou, Yufeng Li, Bing Pan, Fuquan Yang, Lemin Zheng
BACKGROUND: A new mechanism for intercellular communication has recently emerged that involves intercellular transfer of extracellular vesicles (EVs). Several studies have indicated that EVs may play a potential role in cell-to-cell communication between macrophage foam cells and vascular smooth muscle cells (VSMCs) in atherosclerotic lesion. METHODS AND RESULTS: This study involved the comparison of circulating EVs from atherosclerotic patients and control participants...
October 17, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27775058/extracellular-vesicles-from-paracoccidioides-brasiliensis-induced-m1-polarization-in-vitro
#10
Thiago Aparecido da Silva, Maria Cristina Roque-Barreira, Arturo Casadevall, Fausto Almeida
Extracellular vesicles (EVs) released by eukaryotes, archaea, and bacteria contain proteins, lipids, polysaccharides, and other molecules. The cargo analysis of EVs shows that they contain virulence factors suggesting a role in the pathogenesis of infection. The proteome, lipidome, RNA content, and carbohydrate composition of EVs from Paracoccidioides brasiliensis and Paracoccidioides lutzii were characterized. However, the effects of P. brasiliensis EVs on the host immune system have not yet been investigated...
October 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27740763/candida-albicans-modifies-the-protein-composition-and-size-distribution-of-thp-1-macrophage-derived-extracellular-vesicles
#11
Jose Antonio Reales-Calderón, Catarina Vaz, Lucía Monteoliva, Gloria Molero, Concha Gil
The effectiveness of macrophages in the response to systemic candidiasis is crucial to an effective clearance of the pathogen. The secretion of proteins, mRNAs, noncoding RNAs and lipids through extracellular vesicles (EVs) is one of the mechanisms of communication between immune cells. EVs change their cargo to mediate different responses, and may play a role in the response against infections. Thus we have undertaken the first quantitative proteomic analysis on the protein composition of THP-1 macrophage-derived EVs during the interaction with Candida albicans...
January 6, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/27723984/proteomic-and-bioinformatic-characterization-of-extracellular-vesicles-released-from-human-macrophages-upon-influenza-a-virus-infection
#12
Wojciech Cypryk, Martina Lorey, Anne Puustinen, Tuula A Nyman, Sampsa Matikainen
Influenza A viruses (IAVs) are aggressive pathogens that cause acute respiratory diseases and annual epidemics in humans. Host defense against IAV infection is initiated by macrophages, which are the principal effector cells of the innate immune system. We have previously shown that IAV infection of human macrophages is associated with robust secretion of proteins via conventional and unconventional protein release pathways. Here we have characterized unconventional, extracellular vesicle (EV)-mediated protein secretion in human macrophages during IAV infection using proteomics, bioinformatics, and functional studies...
January 6, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/27522254/efficient-production-and-enhanced-tumor-delivery-of-engineered-extracellular-vesicles
#13
Dionysios C Watson, Defne Bayik, Avinash Srivatsan, Cristina Bergamaschi, Antonio Valentin, Gang Niu, Jenifer Bear, Mitchell Monninger, Mei Sun, Aizea Morales-Kastresana, Jennifer C Jones, Barbara K Felber, Xiaoyuan Chen, Ihsan Gursel, George N Pavlakis
Extracellular vesicles (EV), including exosomes and microvesicles, are nano-sized intercellular communication vehicles that participate in a multitude of physiological processes. Due to their biological properties, they are also promising candidates for the systemic delivery of therapeutic compounds, such as cytokines, chemotherapeutic drugs, siRNAs and viral vectors. However, low EV production yield and rapid clearance of administered EV by liver macrophages limit their potential use as therapeutic vehicles...
October 2016: Biomaterials
https://www.readbyqxmd.com/read/26312558/a-comprehensive-proteomics-analysis-reveals-a-secretory-path-and-status-dependent-signature-of-exosomes-released-from-tumor-associated-macrophages
#14
Yinghui Zhu, Xianwei Chen, Qingfei Pan, Yang Wang, Siyuan Su, Cuicui Jiang, Yang Li, Ningzhi Xu, Lin Wu, Xiaomin Lou, Siqi Liu
Exosomes are 30-120 nm-sized membrane vesicles of endocytic origin that are released into the extracellular environment and play roles in cell-cell communication. Tumor-associated macrophages (TAMs) are important constituents of the tumor microenvironment; thus, it is critical to study the features and complex biological functions of TAM-derived exosomes. Here, we constructed a TAM cell model from a mouse macrophage cell line, Ana-1, and performed comparative proteomics on exosomes, exosome-free media, and cells between TAMs and Ana-1...
October 2, 2015: Journal of Proteome Research
https://www.readbyqxmd.com/read/26176909/the-secretome-of-myocardial-telocytes-modulates-the-activity-of-cardiac-stem-cells
#15
Radu Albulescu, Cristiana Tanase, Elena Codrici, Daniela I Popescu, Sanda M Cretoiu, Laurentiu M Popescu
Telocytes (TCs) are interstitial cells that are present in numerous organs, including the heart interstitial space and cardiac stem cell niche. TCs are completely different from fibroblasts. TCs release extracellular vesicles that may interact with cardiac stem cells (CSCs) via paracrine effects. Data on the secretory profile of TCs and the bidirectional shuttle vesicular signalling mechanism between TCs and CSCs are scarce. We aimed to characterize and understand the in vitro effect of the TC secretome on CSC fate...
August 2015: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/26110524/isolation-characterization-and-biological-properties-of-membrane-vesicles-produced-by-the-swine-pathogen-streptococcus-suis
#16
Bruno Haas, Daniel Grenier
Streptococcus suis, more particularly serotype 2, is a major swine pathogen and an emerging zoonotic agent worldwide that mainly causes meningitis, septicemia, endocarditis, and pneumonia. Although several potential virulence factors produced by S. suis have been identified in the last decade, the pathogenesis of S. suis infections is still not fully understood. In the present study, we showed that S. suis produces membrane vesicles (MVs) that range in diameter from 13 to 130 nm and that appear to be coated by capsular material...
2015: PloS One
https://www.readbyqxmd.com/read/26024904/lipid-biosynthetic-genes-affect-candida-albicans-extracellular-vesicle-morphology-cargo-and-immunostimulatory-properties
#17
Julie M Wolf, Javier Espadas, Jose Luque-Garcia, Todd Reynolds, Arturo Casadevall
Microbial secretion is integral for regulating cell homeostasis as well as releasing virulence factors during infection. The genes encoding phosphatidylserine synthase (CHO1) and phosphatidylserine decarboxylase (PSD1 and PSD2) are Candida albicans genes involved in phospholipid biosynthesis, and mutations in these genes affect mitochondrial function, cell wall thickness, and virulence in mice. We tested the roles of these genes in several agar-based secretion assays and observed that the cho1Δ/Δ and psd1Δ/Δ psd2Δ/Δ strains manifested less protease and phospholipase activity...
August 2015: Eukaryotic Cell
https://www.readbyqxmd.com/read/25802036/glioblastoma-derived-extracellular-vesicles-modify-the-phenotype-of-monocytic-cells
#18
Jeroen de Vrij, S L Niek Maas, Kitty M C Kwappenberg, Rosalie Schnoor, Anne Kleijn, Lennard Dekker, Theo M Luider, Lot D de Witte, Manja Litjens, Miriam E van Strien, Elly M Hol, Jerome Kroonen, Pierre A Robe, Martine L Lamfers, Marco W Schilham, Marike L D Broekman
Glioblastoma multiforme (GBM) is the most common primary brain tumor and is without exception lethal. GBMs modify the immune system, which contributes to the aggressive nature of the disease. Particularly, cells of the monocytic lineage, including monocytes, macrophages and microglia, are affected. We investigated the influence of GBM-derived extracellular vesicles (EVs) on the phenotype of monocytic cells. Proteomic profiling showed GBM EVs to be enriched with proteins functioning in extracellular matrix interaction and leukocyte migration...
October 1, 2015: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/25287304/compositional-and-immunobiological-analyses-of-extracellular-vesicles-released-by-candida-albicans
#19
Gabriele Vargas, Juliana D B Rocha, Debora Leite Oliveira, Priscila Costa Albuquerque, Susana Frases, Suelen S Santos, Joshua Daniel Nosanchuk, Andre Marco Oliveira Gomes, Lia C A S Medeiros, Kildare Miranda, Tiago J P Sobreira, Ernesto S Nakayasu, Emma A Arigi, Arturo Casadevall, Allan J Guimaraes, Marcio L Rodrigues, Celio Geraldo Freire-de-Lima, Igor C Almeida, Leonardo Nimrichter
The release of extracellular vesicles (EV) by fungal organisms is considered an alternative transport mechanism to trans-cell wall passage of macromolecules. Previous studies have revealed the presence of EV in culture supernatants from fungal pathogens, such as Cryptococcus neoformans, Histoplasma capsulatum, Paracoccidioides brasiliensis, Sporothrix schenckii, Malassezia sympodialis and Candida albicans. Here we investigated the size, composition, kinetics of internalization by bone marrow-derived murine macrophages (MO) and dendritic cells (DC), and the immunomodulatory activity of C...
March 2015: Cellular Microbiology
https://www.readbyqxmd.com/read/24939886/capsule-growth-in-cryptococcus-neoformans-is-coordinated-with-cell-cycle-progression
#20
Rocío García-Rodas, Radames J B Cordero, Nuria Trevijano-Contador, Guilhem Janbon, Frédérique Moyrand, Arturo Casadevall, Oscar Zaragoza
UNLABELLED: The fungal pathogen Cryptococcus neoformans has several virulence factors, among which the most important is a polysaccharide capsule. The size of the capsule is variable and can increase significantly during infection. In this work, we investigated the relationship between capsular enlargement and the cell cycle. Capsule growth occurred primarily during the G1 phase. Real-time visualization of capsule growth demonstrated that this process occurred before the appearance of the bud and that capsule growth arrested during budding...
2014: MBio
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