{"title":"Public proteomics data: How the field has evolved from sceptical inquiry to the promise of in silico proteomics","authors":"Lennart Martens","doi":"10.1016/j.euprot.2016.02.005","DOIUrl":"https://doi.org/10.1016/j.euprot.2016.02.005","url":null,"abstract":"","PeriodicalId":38260,"journal":{"name":"EuPA Open Proteomics","volume":"11 ","pages":"Pages 42-44"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.euprot.2016.02.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91964991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paola Roncada (Guest editor), Gabriella Tedeschi, Mauro Fasano (Guest editor), Peter Verhaert (Editor in chief)
{"title":"Proteomics: Back to the future","authors":"Paola Roncada (Guest editor), Gabriella Tedeschi, Mauro Fasano (Guest editor), Peter Verhaert (Editor in chief)","doi":"10.1016/j.euprot.2016.04.001","DOIUrl":"10.1016/j.euprot.2016.04.001","url":null,"abstract":"","PeriodicalId":38260,"journal":{"name":"EuPA Open Proteomics","volume":"11 ","pages":"Pages 45-46"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.euprot.2016.04.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36220025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jaco C. Knol , Inge de Reus , Tim Schelfhorst , Robin Beekhof , Meike de Wit , Sander R. Piersma , Thang V. Pham , Egbert F. Smit , Henk M.W. Verheul , Connie R. Jiménez
{"title":"Peptide-mediated ‘miniprep’ isolation of extracellular vesicles is suitable for high-throughput proteomics","authors":"Jaco C. Knol , Inge de Reus , Tim Schelfhorst , Robin Beekhof , Meike de Wit , Sander R. Piersma , Thang V. Pham , Egbert F. Smit , Henk M.W. Verheul , Connie R. Jiménez","doi":"10.1016/j.euprot.2016.02.001","DOIUrl":"10.1016/j.euprot.2016.02.001","url":null,"abstract":"<div><p>Extracellular vesicles (EVs) are cell-secreted membrane vesicles enclosed by a lipid bilayer derived from endosomes or from the plasma membrane. Since EVs are released into body fluids, and their cargo includes tissue-specific and disease-related molecules, they represent a rich source for disease biomarkers. However, standard ultracentrifugation methods for EV isolation are laborious, time-consuming, and require high inputs. Ghosh and co-workers recently described an isolation method utilizing Heat Shock Protein (HSP)-binding peptide Vn96 to aggregate HSP-decorated EVs, which can be performed at small ‘miniprep’ scale. Based on microscopic, immunoblot, and RNA sequencing analyses this method compared well with ultracentrifugation-mediated EV isolation, but a detailed proteomic comparison was lacking. Therefore, we compared both methods using label-free proteomics of replicate EV isolations from HT-29 cell-conditioned medium. Despite a 30-fold different scale (ultracentrifugation: 60<!--> <!-->ml/Vn96-mediated aggregation: 2<!--> <!-->ml) both methods yielded comparable numbers of identified proteins (3115/3085), with similar reproducibility of identification (72.5%/75.5%) and spectral count-based quantification (average CV: 31%/27%). EV fractions obtained with either method contained established EV markers and proteins linked to vesicle-related gene ontologies. Thus, Vn96 peptide-mediated aggregation is an advantageous, simple and rapid approach for EV isolation from small biological samples, enabling high-throughput analysis in a biomarker discovery setting.</p></div>","PeriodicalId":38260,"journal":{"name":"EuPA Open Proteomics","volume":"11 ","pages":"Pages 11-15"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.euprot.2016.02.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36220633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Elisabeth I. Vogt , Veronika M. Kupfer , Rudi F. Vogel, Ludwig Niessen
{"title":"A novel preparation technique of red (sparkling) wine for protein analysis","authors":"Elisabeth I. Vogt , Veronika M. Kupfer , Rudi F. Vogel, Ludwig Niessen","doi":"10.1016/j.euprot.2016.03.001","DOIUrl":"10.1016/j.euprot.2016.03.001","url":null,"abstract":"<div><p>Despite their low concentration, proteins can influence several key enological parameters such as foam stability or haze formation in (sparkling) wine. Most studies focus on white (sparkling) wine since the higher content of phenolic compounds in red wines impairs proteomic research. The aim of the study was the development of a method for the preparation of red (sparkling) wine proteins for proteomic analysis. Three methods of sample preparation were assessed on silver stained SDS-PAGE gels and with MALDI-TOF MS. Our new method was highly suitable for the preparation of proteins for the aforementioned applications. The results showed a substantial increase in signal intensity with a simultaneous decrease in background noise. The preparation protocol consists of (i) dialysis and freeze drying of the sample, (ii) removal of phenolic compounds by water-saturated phenol and (iii) protein precipitation by addition of ammonium acetate. Employment of this method followed by SDS-PAGE analysis allowed for silver stained gels with diminished background or streaking and clearly resolved protein bands. Analysis of spectra obtained from samples prepared according to the proposed protocol showed increased intensity and signal-to-noise ratio in MALDI-TOF MS. Furthermore it was demonstrated that this method can be applied to various kinds of grape products.</p></div>","PeriodicalId":38260,"journal":{"name":"EuPA Open Proteomics","volume":"11 ","pages":"Pages 16-19"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.euprot.2016.03.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36220632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corinna Henkel , Stephen R Pennington , Andrea Urbani
{"title":"EuPACa: An Opportunity for EuPA to co-ordinate and promote Prostate Cancer Proteomics in Europe as part of Global Initiatives","authors":"Corinna Henkel , Stephen R Pennington , Andrea Urbani","doi":"10.1016/j.euprot.2016.03.012","DOIUrl":"10.1016/j.euprot.2016.03.012","url":null,"abstract":"","PeriodicalId":38260,"journal":{"name":"EuPA Open Proteomics","volume":"11 ","pages":"Pages 37-38"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.euprot.2016.03.012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54257747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alice Di Pierro , Heather Bondi , Chiara Monti , Luisa Pieroni , Enrico Cilio , Andrea Urbani , Tiziana Alberio , Mauro Fasano , Maurizio Ronci
{"title":"Experimental setup for the identification of mitochondrial protease substrates by shotgun and top-down proteomics","authors":"Alice Di Pierro , Heather Bondi , Chiara Monti , Luisa Pieroni , Enrico Cilio , Andrea Urbani , Tiziana Alberio , Mauro Fasano , Maurizio Ronci","doi":"10.1016/j.euprot.2016.02.002","DOIUrl":"10.1016/j.euprot.2016.02.002","url":null,"abstract":"<div><p>Mitochondria possess a proteolytic system that contributes to the regulation of mitochondrial dynamics, mitochondrial biogenesis and mitophagy. We aimed at the identification by bottom-up proteomics of altered protein processing due to the activation of mitochondrial proteases in a cellular model of impaired dopamine homeostasis. Moreover, we optimized the conditions for top-down proteomics to identify the cleavage site sequences.</p></div>","PeriodicalId":38260,"journal":{"name":"EuPA Open Proteomics","volume":"11 ","pages":"Pages 1-3"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.euprot.2016.02.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36220630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francesca Lavatelli , Andrea di Fonzo , Giovanni Palladini , Giampaolo Merlini
{"title":"Systemic amyloidoses and proteomics: The state of the art","authors":"Francesca Lavatelli , Andrea di Fonzo , Giovanni Palladini , Giampaolo Merlini","doi":"10.1016/j.euprot.2016.02.003","DOIUrl":"10.1016/j.euprot.2016.02.003","url":null,"abstract":"<div><p>Systemic amyloidoses are caused by misfolding-prone proteins that polymerize in tissues, causing organ dysfunction. Since proteins are etiological agents of these diseases, proteomics was soon recognized as a privileged instrument for their investigation. Mass spectrometry-based proteomics has acquired a fundamental role in management of systemic amyloidoses, being now considered a gold standard approach for amyloid typing. In parallel, approaches for analyzing circulating amyloid precursors have been developed. Moreover, differential and functional proteomics hold promise for identifying novel biomarkers and clarifying disease mechanisms. This review discusses recent proteomics achievements in systemic amyloidoses, providing a perspective on its present and future applications.</p></div>","PeriodicalId":38260,"journal":{"name":"EuPA Open Proteomics","volume":"11 ","pages":"Pages 4-10"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.euprot.2016.02.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36220631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Canals , F. Elortza , A. Paradela , G. Corthals , Michelle Camenzuli , A. Muñoz , O. Schiltz , Anne Gonzalez de Peredo , A Sickman , C. Borchers , Fernando J. Corrales
{"title":"Call for Candidates for the 2016 EuPA Young Investigator Prize (PhD)","authors":"Karl Mechtler","doi":"10.1016/j.euprot.2016.03.010","DOIUrl":"10.1016/j.euprot.2016.03.010","url":null,"abstract":"","PeriodicalId":38260,"journal":{"name":"EuPA Open Proteomics","volume":"11 ","pages":"Page 35"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.euprot.2016.03.010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54257723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}