PXD002950
PXD002950 is an original dataset announced via ProteomeXchange.
Dataset Summary
Title | Plasma-derived extracellular vesicles contain predictive biomarkers and potential therapeutic targets for myocardial ischemic injury |
Description | Myocardial infarction (MI), an undesirable clinical outcome of coronary artery disease (CAD), triggers a potent inflammatory response via the release of circulatory mediators, including extracellular vesicles (EVs) by damaged cardiac cells, which is necessary for myocardial healing. However, when in excess, causes pathological tissue remodeling and eventual heart failure. Timely repression of MI-induced inflammatory response are critical to prevent and minimize cardiac tissue injuries, nonetheless, progression in this aspect remains clinically challenging. The well documentation on the ability of EVs to trigger a functional response with the delivery of bioactive cargos carried within, have made them clinically attractive as diagnostic biomarkers and drug vectors for therapeutic interventions. Using label-free quantitative proteomics approach, we compared the protein cargo of plasma EVs between patients with (MI) and from control patients with stable angina (NMI). We report, for the first time, the expression proteomics profiling on 252 plasma EV proteins that were modulated with >1.2-fold in myocardial injury. We identified a panel of six strongly up-regulated biomarkers with significant potential for clinical applications; these reflected post-infarct pathways of complement activation (Complement C1q subcomponent subunit A [C1QA], ~3.23-fold change, p = 0.012; Complement C5 [C5], ~1.27-fold change, p = 0.087), lipoprotein metabolism (Apoliporotein D [APOD], ~1.86-fold change, p = 0.033; Apolipoprotein C-III [APOCC3], ~2.63-fold change, p = 0.029) and platelet activation (Platelet glycoprotein Ib alpha chain [GP1BA], ~9.18-fold change, p < 0.0001; Platelet basic protein [PPBP], ~4.72-fold change, p = 0.027). The data have been deposited to the ProteomeXchange with identifier PXD002950. This novel biomarker panel was successfully validated in a separate cohort of 43 individual angina patients using Luminex analysis of the representative EV proteins C1QA (p = 0.005) and C5 (p = 0.0021), which act as critical regulators of complement activity in MI. We further present that all EV-derived fibrinogen components detected were paradoxically down-regulated in MI, suggesting that a compensatory mechanism may suppress post-infarct coagulation pathways, and indicating potential for therapeutic targeting of this mechanism in MI. Taken together, these data urge the further development of novel EV-based diagnostic and therapeutic strategies to benefit patients with CAD. |
HostingRepository | PRIDE |
AnnounceDate | 2016-05-31 |
AnnouncementXML | Submission_2016-05-31_03:33:22.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Esther Cheow |
SpeciesList | scientific name: Homo sapiens (Human); NCBI TaxID: 9606; |
ModificationList | deamidated residue; iodoacetamide derivatized residue |
Instrument | LTQ FT |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
---|---|---|---|
0 | 2015-09-21 02:04:01 | ID requested | |
⏵ 1 | 2016-05-31 03:33:24 | announced |
Publication List
Cheow ES, Cheng WC, Lee CN, de Kleijn D, Sorokin V, Sze SK, Plasma-derived Extracellular Vesicles Contain Predictive Biomarkers and Potential Therapeutic Targets for Myocardial Ischemic (MI) Injury. Mol Cell Proteomics, 15(8):2628-40(2016) [pubmed] |
Keyword List
submitter keyword: Cardiovascular disease |
Exosomes |
Label-free quantification |
Plasma or serum analysis |
Biomarker: Diagnostic |
Extracellular vesicles |
Contact List
Newman Siu Kwan SZE | |
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contact affiliation | Associate Professor Director of Proteomics and Mass Spectrometry Facility School of Biological Sciences Nanyang Technological University 60 Nanyang Drive, Singapore 637551 Tel: (65) 6514-1006; Fax: (65) 6791-3856 Email: sksze@ntu.edu.sg Web: http://proteomics.sbs.ntu.edu.sg/ |
contact email | sksze@ntu.edu.sg |
lab head | |
Esther Cheow | |
contact affiliation | Nanyang Technological University |
contact email | shcheow1@e.ntu.edu.sg |
dataset submitter |
Full Dataset Link List
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PRIDE project URI |
Repository Record List
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