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proteomics extracellular vesicle

Duthika M Mallawaaratchy, Susannah Hallal, Ben Russell, Linda Ly, Saeideh Ebrahimkhani, Heng Wei, Richard I Christopherson, Michael E Buckland, Kimberley L Kaufman
Extracellular vesicles (EVs) play key roles in glioblastoma (GBM) biology and represent novel sources of biomarkers that are detectable in the peripheral circulation. Despite this notionally non-invasive approach to assess GBM tumours in situ, a comprehensive GBM EV protein signature has not been described. Here, EVs secreted by six GBM cell lines were isolated and analysed by quantitative high-resolution mass spectrometry. Overall, 844 proteins were identified in the GBM EV proteome, of which 145 proteins were common to EVs secreted by all cell lines examined; included in the curated EV compendium (Vesiclepedia_559; http://microvesicles...
October 21, 2016: Journal of Neuro-oncology
Zhaogang Yang, Jing Xie, Jing Zhu, Chen Kang, Chiling Chiang, Xinmei Wang, Xiaobing Wang, Tairong Kuang, Feng Chen, Zhou Chen, Aili Zhang, Bo Yu, Robert J Lee, Lesheng Teng, L James Lee
Exosomes, the smallest subgroup of extracellular vesicles, have been recognized as extracellular organelles that contain genetic and proteomic information for long distance intercellular communication. Exosome-based drug delivery is currently a subject of intensive research. Here, we report a novel strategy to produce nanoscale exosome-mimics (EMs) in sufficient quantity for gene delivery in cancer both in vitro and in vivo. Size-controllable EMs were generated at a high yield by serial extrusion of non-tumorigenic epithelial MCF-10A cells through filters with different pore sizes...
October 11, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
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, non-coding 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 THP1 macrophages-derived EVs during the interaction with Candida albicans...
October 14, 2016: Journal of Proteome Research
Wojciech Cypryk, Martina B 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...
October 11, 2016: Journal of Proteome Research
Eduardo de la Torre-Escudero, Adam P S Bennett, Alexzandra Clarke, Gerard P Brennan, Mark W Robinson
The recent discovery that parasites release extracellular vesicles (EVs) that can transfer a range of effector molecules to host cells has made us re-think our understanding of the host-parasite interface. In this opinion article we consider how recent proteomics and transcriptomics studies, together with ultrastructural observations, suggest that more than one mechanism of EV biogenesis can occur in helminths. We propose that distinct EV subtypes have roles in immune modulation and repair of drug-induced damage, and put forward the case for targeting EV biogenesis pathways to achieve parasite control...
October 5, 2016: Trends in Parasitology
Julie Leca, Sébastien Martinez, Sophie Lac, Jérémy Nigri, Véronique Secq, Marion Rubis, Christian Bressy, Arnauld Sergé, Marie-Noelle Lavaut, Nelson Dusetti, Céline Loncle, Julie Roques, Daniel Pietrasz, Corinne Bousquet, Stéphane Garcia, Samuel Granjeaud, Mehdi Ouaissi, Jean Baptiste Bachet, Christine Brun, Juan L Iovanna, Pascale Zimmermann, Sophie Vasseur, Richard Tomasini
The intratumoral microenvironment, or stroma, is of major importance in the pathobiology of pancreatic ductal adenocarcinoma (PDA), and specific conditions in the stroma may promote increased cancer aggressiveness. We hypothesized that this heterogeneous and evolving compartment drastically influences tumor cell abilities, which in turn influences PDA aggressiveness through crosstalk that is mediated by extracellular vesicles (EVs). Here, we have analyzed the PDA proteomic stromal signature and identified a contribution of the annexin A6/LDL receptor-related protein 1/thrombospondin 1 (ANXA6/LRP1/TSP1) complex in tumor cell crosstalk...
October 4, 2016: Journal of Clinical Investigation
M I Ramirez, P Deolindo, I J de Messias-Reason, Emma A Arigi, H Choi, I C Almeida, I Evans-Osses
Extracellular vesicles (EVs) released from pathogens may alter host-cell functions. We previously demonstrated the involvement of host cell-derived microvesicles (MVs) during early interaction between Trypanosoma cruzi metacyclic trypomastigote (META) stage and THP-1 cells. Here, we aim to understand the contribution of different parasite stages and their EVs in the interaction with host cells. First, we observed that infective host cell-derived trypomastigote (TCT), META, and noninfective epimastigote (EPI) stages were able to induce different levels of MV release from THP-1 cells; however, only META and TCT could increase host-cell invasion...
September 25, 2016: Cellular Microbiology
Wataru Nakai, Takeshi Yoshida, Diego Diez, Yuji Miyatake, Takahiro Nishibu, Naoko Imawaka, Ken Naruse, Yoshifusa Sadamura, Rikinari Hanayama
Extracellular vesicles (EVs) such as exosomes and microvesicles serve as messengers of intercellular network, allowing exchange of cellular components between cells. EVs carry lipids, proteins, and RNAs derived from their producing cells, and have potential as biomarkers specific to cell types and even cellular states. However, conventional methods (such as ultracentrifugation or polymeric precipitation) for isolating EVs have disadvantages regarding purity and feasibility. Here, we have developed a novel method for EV purification by using Tim4 protein, which specifically binds the phosphatidylserine displayed on the surface of EVs...
2016: Scientific Reports
Sravani Musunuri, Payam Emami Khoonsari, Maria Mikus, Magnus Wetterhall, Anna Häggmark-Mänberg, Lars Lannfelt, Anna Erlandsson, Jonas Bergquist, Martin Ingelsson, Ganna Shevchenko, Peter Nilsson, Kim Kultima
BACKGROUND: Alzheimer's disease (AD) is a chronic neurodegenerative disorder accounting for more than 50% of all dementia cases. AD neuropathology is characterized by the formation of extracellular plaques and intracellular neurofibrillary tangles consisting of aggregated amyloid-β and tau, respectively. The disease mechanism has only been partially elucidated and is believed to also involve many other proteins. OBJECTIVE: This study intended to perform a proteomic profiling of post mortem AD brains and compare it with control brains as well as brains from other neurological diseases to gain insight into the disease pathology...
October 18, 2016: Journal of Alzheimer's Disease: JAD
Tom Groot Kormelink, Ger J A Arkesteijn, Chris H A van de Lest, Willie J C Geerts, Soenita S Goerdayal, Maarten A F Altelaar, Frank A Redegeld, Esther N M Nolte-'t Hoen, Marca H M Wauben
Mast cells (MC) are well known for their effector role in allergic disorders; moreover, they are associated with diverse modulatory effects in innate and adaptive immunity. It is largely unclear how MC exert these modulating functions. In this article, we show that IgE-mediated MC degranulation leads to a rapid release of high quantities of extracellular vesicles (EV), comparable to the release of preformed mediators. EV are submicron structures composed of lipid bilayers, proteins, and nucleic acids that are released by cells in a regulated fashion and are involved in intercellular communication...
September 12, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
Anja M Billing, Hisham Ben Hamidane, Aditya M Bhagwat, Richard J Cotton, Shaima S Dib, Pankaj Kumar, Shahina Hayat, Neha Goswami, Karsten Suhre, Arash Rafii, Johannes Graumann
: Dynamic range limitations are challenging to proteomics, particularly in clinical samples. Affinity proteomics partially overcomes this, yet suffers from dependence on reagent quality. SOMAscan, an aptamer-based platform for over 1000 proteins, avoids that issue using nucleic acid binders. Targets include low expressed proteins not easily accessible by other approaches. Here we report on the potential of SOMAscan for the study of differently sourced mesenchymal stem cells (MSC) in comparison to LC-MS/MS and RNA sequencing...
September 6, 2016: Journal of Proteomics
David W Greening, Hong Ji, Maoshan Chen, Bruce W S Robinson, Ian M Dick, Jenette Creaney, Richard J Simpson
Malignant mesothelioma (MM) is a highly-aggressive heterogeneous malignancy, typically diagnosed at advanced stage. An important area of mesothelioma biology and progression is understanding intercellular communication and the contribution of the secretome. Exosomes are secreted extracellular vesicles shown to shuttle cellular cargo and direct intercellular communication in the tumour microenvironment, facilitate immunoregulation and metastasis. In this study, quantitative proteomics was used to investigate MM-derived exosomes from distinct human models and identify select cargo protein networks associated with angiogenesis, metastasis, and immunoregulation...
2016: Scientific Reports
Martijn J C van Herwijnen, Marijke I Zonneveld, Soenita Goerdayal, Esther N M Nolte-'t Hoen, Johan Garssen, Bernd Stahl, A F Maarten Altelaar, Frank A Redegeld, Marca H M Wauben
Breast milk contains several macromolecular components with distinctive functions, whereby milk fat globules and casein micelles mainly provide nutrition to the newborn, while whey contains molecules that can stimulate the newborn's developing immune system and gastrointestinal tract. Although extracellular vesicles (EV) have been identified in breast milk, their physiological function and composition has not been addressed in detail. EV are submicron sized vehicles released by cells for intercellular communication via selectively incorporated lipids, nucleic acids and proteins...
September 6, 2016: Molecular & Cellular Proteomics: MCP
Jinseong Jeon, Hyuck Jun Mok, Youngwoo Choi, Seung Chul Park, Hunho Jo, Jin Her, Jin-Kwan Han, Yoon-Keun Kim, Kwang Pyo Kim, Changill Ban
Extracellular vesicle (EV) has been reported to conduct critical pathophysiological functions as an emerging mode of communication in bacteria. Recently, Propionibacterium acnes, an anaerobic Gram-positive human commensal found in the skin and gastrointestinal tract, has drawn increasing attention as an underestimated pathogen in a variety of diseases. For the comprehensive understanding of P. acnes, here we report the isolation of P. acnes EVs for the first time and identification of 252 vesicular proteins with high confidence using triplicate LC-MS/MS analyses...
September 5, 2016: Proteomics. Clinical Applications
Ioulia Vardaki, Sophia Ceder, Dorothea Rutishauser, George Baltatzis, Theodoros Foukakis, Theocharis Panaretakis
Breast cancer (BrCa) is the most frequent cancer type in women and a leading cause of cancer related deaths in the world. Despite the decrease in mortality due to better diagnostics and palliative care, there is a lack of prognostic markers of metastasis. Recently, the exploitation of liquid biopsies and in particular of the extracellular vesicles has shown promise in the identification of such prognostic markers. In this study we compared the proteomic content of exosomes derived from metastatic and non-metastatic human (MCF7 and MDA-MB-231) and mouse (67NR and 4T1) cell lines...
August 29, 2016: Oncotarget
Yuko Ogawa, Masafumi Tsujimoto, Ryohei Yanoshita
Exosomes are small extracellular vesicles containing microRNAs and mRNAs that are produced by various types of cells. We previously used ultrafiltration and size-exclusion chromatography to isolate two types of human salivary exosomes (exosomes I, II) that are different in size and proteomes. We showed that salivary exosomes contain large repertoires of small RNAs. However, precise information regarding long RNAs in salivary exosomes has not been fully determined. In this study, we investigated the compositions of protein-coding RNAs (pcRNAs) and long non-protein-coding RNAs (lncRNAs) of exosome I, exosome II and whole saliva (WS) by next-generation sequencing technology...
2016: Biological & Pharmaceutical Bulletin
Marc Warmoes, Siu W Lam, Petra van der Groep, Janneke E Jaspers, Yvonne H C M Smolders, Leon de Boer, Thang V Pham, Sander R Piersma, Sven Rottenberg, Epie Boven, Jos Jonkers, Paul J van Diest, Connie R Jimenez
Breast cancer arising in female BRCA1 mutation carriers is characterized by an aggressive phenotype and early age of onset. We performed tandem mass spectrometry-based proteomics of secretomes and exosome-like extracellular vesicles from BRCA1-deficient and BRCA1-proficient murine breast tumor models to identify extracellular protein biomarkers, which can be used as an adjunct to current diagnostic modalities in patients with BRCA1-deficient breast cancer. We identified 2,107 proteins, of which 215 were highly enriched in the BRCA1-deficient secretome...
August 23, 2016: Oncotarget
Maria-Jose Martinez-Bravo, Casper J E Wahlund, Khaleda Rahman Qazi, Robert Moulder, Ana Lukic, Olof Rådmark, Riitta Lahesmaa, Johan Grunewald, Anders Eklund, Susanne Gabrielsson
BACKGROUND: Sarcoidosis is an inflammatory granulomatous disorder characterized by accumulation of TH1-type CD4(+) T cells and immune effector cells within affected organs, most frequently the lungs. Exosomes are extracellular vesicles conveying intercellular communication with possible diagnostic and therapeutic applications. OBJECTIVES: We aimed to provide an understanding of the proinflammatory role of bronchoalveolar lavage fluid (BALF) exosomes in patients with sarcoidosis and to find candidates for disease biomarkers...
August 23, 2016: Journal of Allergy and Clinical Immunology
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
Melinda Rezeli, Olof Gidlöf, Mikael Evander, Paulina Bryl-Górecka, Ramasri Sathanoori, Patrik Gilje, Krzysztof Pawłowski, Péter Horvatovich, David Erlinge, György Marko-Varga, Thomas Laurell
Extracellular vesicles (ECVs), including microparticles and exosomes, are submicrometer membrane vesicles released by diverse cell types upon activation or stress. Circulating ECVs are potential reservoirs of disease biomarkers, and the complexity of these vesicles is significantly lower compared to their source, blood plasma, which makes ECV-based biomarker studies more promising. Proteomic profiling of ECVs is important not only to discover new diagnostic or prognostic markers but also to understand their roles in biological function...
September 6, 2016: Analytical Chemistry
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