Proteome of endothelial cell-derived procoagulant microparticles.
Microparticles (MP) are small membrane vesicles that are released from cells upon activation or during apoptosis. Cellular MP in body fluids constitute a heterogeneous population, differing in cellular origin, numbers, size, antigenic composition and functional properties. MP support coagulation by...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2005
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| _version_ | 1826282573172572160 |
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| author | Banfi, C Brioschi, M Wait, R Begum, S Gianazza, E Pirillo, A Mussoni, L Tremoli, E |
| author_facet | Banfi, C Brioschi, M Wait, R Begum, S Gianazza, E Pirillo, A Mussoni, L Tremoli, E |
| author_sort | Banfi, C |
| collection | OXFORD |
| description | Microparticles (MP) are small membrane vesicles that are released from cells upon activation or during apoptosis. Cellular MP in body fluids constitute a heterogeneous population, differing in cellular origin, numbers, size, antigenic composition and functional properties. MP support coagulation by exposure of tissue factor (TF), the initiator of coagulation in vivo. Moreover, MP may transfer bioactive molecules to other cells, thereby stimulating them to produce cytokines, cell-adhesion molecules, growth factors and TF, and modulate endothelial functions. However, a comprehensive characterization of the antigenic composition of MP has been poorly defined. This study describes the protein composition of endothelial cell (EC)-derived MP (EMP) using a proteomic approach. MS analysis indicated the presence of newly described protein such as metabolic enzymes, proteins involved in adhesion and fusion processes, members of protein folding event, cytoskeleton associated proteins and nucleosome. In conclusion, circulating EMP behave as an actual storage pool, able to disseminate blood-borne TF activity and other bioactive effectors, as confirmed by our experiments showing an increased procoagulant activity of EC exposed to EMP. |
| first_indexed | 2024-03-07T00:45:53Z |
| format | Journal article |
| id | oxford-uuid:84a4e4fc-1ab4-4258-8171-890ac944484c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:45:53Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:84a4e4fc-1ab4-4258-8171-890ac944484c2022-03-26T21:52:24ZProteome of endothelial cell-derived procoagulant microparticles.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:84a4e4fc-1ab4-4258-8171-890ac944484cEnglishSymplectic Elements at Oxford2005Banfi, CBrioschi, MWait, RBegum, SGianazza, EPirillo, AMussoni, LTremoli, EMicroparticles (MP) are small membrane vesicles that are released from cells upon activation or during apoptosis. Cellular MP in body fluids constitute a heterogeneous population, differing in cellular origin, numbers, size, antigenic composition and functional properties. MP support coagulation by exposure of tissue factor (TF), the initiator of coagulation in vivo. Moreover, MP may transfer bioactive molecules to other cells, thereby stimulating them to produce cytokines, cell-adhesion molecules, growth factors and TF, and modulate endothelial functions. However, a comprehensive characterization of the antigenic composition of MP has been poorly defined. This study describes the protein composition of endothelial cell (EC)-derived MP (EMP) using a proteomic approach. MS analysis indicated the presence of newly described protein such as metabolic enzymes, proteins involved in adhesion and fusion processes, members of protein folding event, cytoskeleton associated proteins and nucleosome. In conclusion, circulating EMP behave as an actual storage pool, able to disseminate blood-borne TF activity and other bioactive effectors, as confirmed by our experiments showing an increased procoagulant activity of EC exposed to EMP. |
| spellingShingle | Banfi, C Brioschi, M Wait, R Begum, S Gianazza, E Pirillo, A Mussoni, L Tremoli, E Proteome of endothelial cell-derived procoagulant microparticles. |
| title | Proteome of endothelial cell-derived procoagulant microparticles. |
| title_full | Proteome of endothelial cell-derived procoagulant microparticles. |
| title_fullStr | Proteome of endothelial cell-derived procoagulant microparticles. |
| title_full_unstemmed | Proteome of endothelial cell-derived procoagulant microparticles. |
| title_short | Proteome of endothelial cell-derived procoagulant microparticles. |
| title_sort | proteome of endothelial cell derived procoagulant microparticles |
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