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Journal of Extracellular Vesicles

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https://www.readbyqxmd.com/read/29435202/podocyte-derived-microparticles-promote-proximal-tubule-fibrotic-signaling-via-p38-mapk-and-cd36
#1
Mercedes N Munkonda, Shareef Akbari, Chloe Landry, Suzy Sun, Fengxia Xiao, Maddison Turner, Chet E Holterman, Rania Nasrallah, Richard L Hébert, Christopher R J Kennedy, Dylan Burger
Tubulointerstitial fibrosis is a hallmark of advanced diabetic kidney disease that is linked to a decline in renal function, however the pathogenic mechanisms are poorly understood. Microparticles (MPs) are 100-1000 nm vesicles shed from injured cells that are implicated in intercellular signalling. Our lab recently observed the formation of MPs from podocytes and their release into urine of animal models of type 1 and 2 diabetes and in humans with type 1 diabetes. The purpose of the present study was to examine the role of podocyte MPs in tubular epithelial cell fibrotic responses...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29410780/characterization-of-trichuris-muris-secreted-proteins-and-extracellular-vesicles-provides-new-insights-into-host-parasite-communication
#2
Ramon M Eichenberger, Md Hasanuzzaman Talukder, Matthew A Field, Phurpa Wangchuk, Paul Giacomin, Alex Loukas, Javier Sotillo
Whipworms are parasitic nematodes that live in the gut of more than 500 million people worldwide. Owing to the difficulty in obtaining parasite material, the mouse whipworm Trichuris muris has been extensively used as a model to study human whipworm infections. These nematodes secrete a multitude of compounds that interact with host tissues where they orchestrate a parasitic existence. Herein we provide the first comprehensive characterization of the excretory/secretory products of T. muris. We identify 148 proteins secreted by T...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29410779/exosomes-as-secondary-inductive-signals-involved-in-kidney-organogenesis
#3
Mirja Krause, Aleksandra Rak-Raszewska, Florence Naillat, Ulla Saarela, Christina Schmidt, Veli-Pekka Ronkainen, Geneviève Bart, Seppo Ylä-Herttuala, Seppo J Vainio
The subfraction of extracellular vesicles, called exosomes, transfers biological molecular information not only between cells but also between tissues and organs as nanolevel signals. Owing to their unique properties such that they contain several RNA species and proteins implicated in kidney development, exosomes are putative candidates to serve as developmental programming units in embryonic induction and tissue interactions. We used the mammalian metanephric kidney and its nephron-forming mesenchyme containing the nephron progenitor/stem cells as a model to investigate if secreted exosomes could serve as a novel type of inductive signal in a process defined as embryonic induction that controls organogenesis...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29410778/efficient-ultrafiltration-based-protocol-to-deplete-extracellular-vesicles-from-fetal-bovine-serum
#4
Roman Kornilov, Maija Puhka, Bettina Mannerström, Hanna Hiidenmaa, Hilkka Peltoniemi, Pia Siljander, Riitta Seppänen-Kaijansinkko, Sippy Kaur
Fetal bovine serum (FBS) is the most commonly used supplement in studies involving cell-culture experiments. However, FBS contains large numbers of bovine extracellular vesicles (EVs), which hamper the analyses of secreted EVs from the cell type of preference and, thus, also the downstream analyses. Therefore, a prior elimination of EVs from FBS is crucial. However, the current methods of EV depletion by ultracentrifugation are cumbersome and the commercial alternatives expensive. In this study, our aim was to develop a protocol to completely deplete EVs from FBS, which may have wide applicability in cell-culture applications...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29372017/therapeutic-biomaterials-based-on-extracellular-vesicles-classification-of-bio-engineering-and-mimetic-preparation-routes
#5
REVIEW
Pablo García-Manrique, María Matos, Gemma Gutiérrez, Carmen Pazos, María Carmen Blanco-López
Extracellular vesicles (EVs) are emerging as novel theranostic tools. Limitations related to clinical uses are leading to a new research area on design and manufacture of artificial EVs. Several strategies have been reported in order to produce artificial EVs, but there has not yet been a clear criterion by which to differentiate these novel biomaterials. In this paper, we suggest for the first time a systematic classification of the terms used to build up the artificial EV landscape, based on the preparation method...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29359036/selective-release-of-circrnas-in-platelet-derived-extracellular-vesicles
#6
Christian Preußer, Lee-Hsueh Hung, Tim Schneider, Silke Schreiner, Martin Hardt, Anna Moebus, Sentot Santoso, Albrecht Bindereif
Circular RNAs (circRNAs) are a novel class of noncoding RNAs present in all eukaryotic cells investigated so far and generated by a special mode of alternative splicing of pre-mRNAs. Thereby, single exons, or multiple adjacent and spliced exons, are released in a circular form. CircRNAs are cell-type specifically expressed, are unusually stable, and can be found in various body fluids such as blood and saliva. Here we analysed circRNAs and the corresponding linear splice isoforms from human platelets, where circRNAs are particularly abundant, compared with other hematopoietic cell types...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29046763/abstract-book-isev2017
#7
(no author information available yet)
No abstract text is available yet for this article.
April 2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29296254/extracellular-vesicles-yield-predictive-pre-eclampsia-biomarkers
#8
Kok Hian Tan, Soon Sim Tan, Mor Jack Ng, Wan Shi Tey, Wei Kian Sim, John Carson Allen, Sai Kiang Lim
Circulating extracellular vesicles (EVs) such as cholera toxin B chain (CTB)- or annexin V (AV)-binding EVs were previously shown to be rich sources of biomarkers. Here we test if previously identified pre-eclampsia (PE) candidate biomarkers, TIMP-1 in CTB-EVs (CTB-TIMP) and PAI-1 in AV-EVs (AV-PAI) complement plasma PlGF in predicting PE in a low-risk obstetric population. Eight hundred and forty-three prospectively banked plasma samples collected at 28 + 0 to 32 + 0 gestation weeks in the Neonatal and Obstetrics Risk Assessment (NORA) cohort study were assayed by sandwich ELISAs for plasma PlGF, CTB-TIMP1 and AV-PAI1...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29209467/biological-roles-and-potential-applications-of-immune-cell-derived-extracellular-vesicles
#9
REVIEW
Chuan Wen, Robert C Seeger, Muller Fabbri, Larry Wang, Alan S Wayne, Ambrose Y Jong
Extracellular vesicles (EVs) deliver bioactive macromolecules (i.e. proteins, lipids and nucleic acids) for intercellular communication in multicellular organisms. EVs are secreted by all cell types including immune cells. Immune cell-derived EVs modulate diverse aspects of the immune system to either enhance or suppress immune activities. The extensive effects of immune cell-derived EVs have become the focus of great interest for various nano-biomedical applications, ranging from the medical use of nanoplatform-based diagnostic agents to the development of therapeutic interventions as well as vaccine applications, and thus may be ideal for 'immune-theranostic'...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29184626/updating-the-misev-minimal-requirements-for-extracellular-vesicle-studies-building-bridges-to-reproducibility
#10
EDITORIAL
Kenneth W Witwer, Carolina Soekmadji, Andrew F Hill, Marca H Wauben, Edit I Buzás, Dolores Di Vizio, Juan M Falcon-Perez, Chris Gardiner, Fred Hochberg, Igor V Kurochkin, Jan Lötvall, Suresh Mathivanan, Rienk Nieuwland, Susmita Sahoo, Hidetoshi Tahara, Ana Claudia Torrecilhas, Alissa M Weaver, Hang Yin, Lei Zheng, Yong Song Gho, Peter Quesenberry, Clotilde Théry
No abstract text is available yet for this article.
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29184625/confounding-factors-in-vesicle-uptake-studies-using-fluorescent-lipophilic-membrane-dyes
#11
Kaloyan Takov, Derek M Yellon, Sean M Davidson
Small extracellular vesicles (sEVs) such as exosomes are nanocarriers of proteins, RNAs and DNAs. Isolation of pure sEV populations remains challenging, with reports of protein and lipoprotein contaminants in the isolates. Cellular uptake - a cornerstone for understanding exosome and sEV function - is frequently examined using lipophilic dyes such as PKH67 or CellMask to label the vesicles. In this study, we investigated whether contaminants can confound the outcomes from sEV and exosomes uptake experiments...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29184624/is-your-article-ev-tracked
#12
Jan Van Deun, An Hendrix
The EV-TRACK knowledgebase is developed to cope with the need for transparency and rigour to increase reproducibility and facilitate standardization of extracellular vesicle (EV) research. The knowledgebase includes a checklist for authors and editors intended to improve the transparency of methodological aspects of EV experiments, allows queries and meta-analysis of EV experiments and keeps track of the current state of the art. Widespread implementation by the EV research community is key to its success.
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29184623/neutral-sphingomyelinases-control-extracellular-vesicles-budding-from-the-plasma-membrane
#13
Kerstin Menck, Can Sönmezer, Thomas Stefan Worst, Matthias Schulz, Gry Helene Dihazi, Frank Streit, Gerrit Erdmann, Simon Kling, Michael Boutros, Claudia Binder, Julia Christina Gross
Extracellular vesicles (EVs) are membrane particles secreted from cells into all body fluids. Several EV populations exist differing in size and cellular origin. Using differential centrifugation EVs pelleting at 14,000 g ("microvesicles" (MV)) and 100,000 g ("exosomes") are distinguishable by protein markers. Neutral sphingomyelinase (nSMase) inhibition has been shown to inhibit exosome release from cells and has since been used to study their functional implications. How nSMases (also known as SMPD2 and SMPD3) affect the basal secretion of MVs is unclear...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28959386/cerebrospinal-fluid-extracellular-vesicle-enrichment-for-protein-biomarker-discovery-in-neurological-disease-multiple-sclerosis
#14
Joanne L Welton, Samantha Loveless, Timothy Stone, Chris von Ruhland, Neil P Robertson, Aled Clayton
The discovery of disease biomarkers, along with the use of "liquid biopsies" as a minimally invasive source of biomarkers, continues to be of great interest. In inflammatory diseases of the central nervous system (CNS), cerebrospinal fluid (CSF) is the most obvious biofluid source. Extracellular vesicles (EVs) are also present in CSF and are thought to be potential "biomarker treasure chests". However, isolating these CSF-derived EVs remains challenging. This small-scale pilot study developed and tested a protocol to enrich for CSF-EVs, both in relapsing remitting multiple sclerosis (RRMS) CSF and controls...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28959385/dominant-immunosuppression-of-dendritic-cell-function-by-prostate-cancer-derived-exosomes
#15
Josephine Salimu, Jason Webber, Mark Gurney, Saly Al-Taei, Aled Clayton, Zsuzsanna Tabi
Exosomes are a distinct population of extracellular vesicles of endocytic origin with a protein repertoire similar to the parent cell. Although tumour-derived exosomes harbour immunosuppressive characteristics, they also carry tumour antigens and thus potentially contribute to immune activation. The aim of this study was to examine the impact of prostate cancer exosomes on tumour antigen cross-presentation. DU145 cells, transduced with shRNA to knockdown Rab27a (DU145KD) that inhibits exosome secretion, triggered significantly stronger tumour-antigen-specific T cell responses when loaded onto dendritic cells (DC) than control DU145 cells...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28819550/effects-of-storage-temperature-on-airway-exosome-integrity-for-diagnostic-and-functional-analyses
#16
Rosario Maroto, Yingxin Zhao, Mohammad Jamaluddin, Vsevolod L Popov, Hongwang Wang, Madumali Kalubowilage, Yueqing Zhang, Jonathan Luisi, Hong Sun, Christopher T Culbertson, Stefan H Bossmann, Massoud Motamedi, Allan R Brasier
Background: Extracellular vesicles contain biological molecules specified by cell-type of origin and modified by microenvironmental changes. To conduct reproducible studies on exosome content and function, storage conditions need to have minimal impact on airway exosome integrity. Aim: We compared surface properties and protein content of airway exosomes that had been freshly isolated vs. those that had been treated with cold storage or freezing. Methods: Mouse bronchoalveolar lavage fluid (BALF) exosomes purified by differential ultracentrifugation were analysed immediately or stored at +4°C or -80°C...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28819549/metastatic-state-of-parent-cells-influences-the-uptake-and-functionality-of-prostate-cancer-cell-derived-extracellular-vesicles
#17
Elisa Lázaro-Ibáñez, Maarit Neuvonen, Maarit Takatalo, Uma Thanigai Arasu, Cristian Capasso, Vincenzo Cerullo, Johng S Rhim, Kirsi Rilla, Marjo Yliperttula, Pia R-M Siljander
Extracellular vesicles (EVs), including microvesicles and exosomes, mediate intercellular signalling which has a profound role in cancer progression and in the development of metastasis. Internalisation of EVs can prompt functional changes in the recipient cells, the nature of which depends on the molecular composition and the cargo of the EVs. We hypothesised that the metastatic stage of cancerous parent cells would determine the uptake efficacy and the subsequent functional effects of the respective cancer cell-derived EVs...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28815003/glioblastoma-stem-like-cells-secrete-the-pro-angiogenic-vegf-a-factor-in-extracellular-vesicles
#18
Lucas Treps, Raul Perret, Sébastien Edmond, Damien Ricard, Julie Gavard
Glioblastoma multiforme (GBM) are mortifying brain tumours that contain a subpopulation of tumour cells with stem-like properties, termed glioblastoma stem-like cells (GSCs). GSCs largely contribute to tumour initiation, propagation and resistance to current anti-cancer therapies. GSCs are situated in perivascular niches, closely associated with brain microvascular endothelial cells, thereby involved in bidirectional molecular and cellular interactions. Moreover, extracellular vesicles are suspected to carry essential information that can adapt the microenvironment to the tumour's needs, including tumour-induced angiogenesis...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28815002/a-comprehensive-method-for-identification-of-suitable-reference-genes-in-extracellular-vesicles
#19
Kenneth Gouin, Kiel Peck, Travis Antes, Jennifer Leigh Johnson, Chang Li, Sharon Denise Vaturi, Ryan Middleton, Geoff de Couto, Ann-Sophie Walravens, Luis Rodriguez-Borlado, Rachel Ruckdeschel Smith, Linda Marbán, Eduardo Marbán, Ahmed Gamal-Eldin Ibrahim
Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) is one of the most sensitive, economical and widely used methods for evaluating gene expression. However, the utility of this method continues to be undermined by a number of challenges including normalization using appropriate reference genes. The need to develop tailored and effective strategies is further underscored by the burgeoning field of extracellular vesicle (EV) biology. EVs contain unique signatures of small RNAs including microRNAs (miRs)...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28804599/circulating-exosome-microrna-associated-with-heart-failure-secondary-to-myxomatous-mitral-valve-disease-in-a-naturally-occurring-canine-model
#20
Vicky K Yang, Kerry A Loughran, Dawn M Meola, Christine M Juhr, Kristen E Thane, Airiel M Davis, Andrew M Hoffman
Myxomatous mitral valve disease (MMVD) is functionally and histologically identical to mitral valve prolapse (MVP) in humans. Currently, there are no medical treatments that can delay the progression of this valvular disease or associated cardiac remodelling. Therefore, there is a need to understand the molecular pathology associated with MMVD and MVP better, and thus identify potential therapeutic targets. Circulating exosomes contain small RNA, including miRNA, which reflect cell physiology and pathology...
2017: Journal of Extracellular Vesicles
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