Article ; Online: Angiopoietin-2 binds to multiple interactive sites within von Willebrand factor.
Research and practice in thrombosis and haemostasis
2023 Volume 7, Issue 7, Page(s) 102204
Abstract: Background: Biosynthesis of von Willebrand factor (VWF) in endothelial cells drives the formation of storage-organelles known as Weibel-Palade bodies (WPBs). WPBs also contain several other proteins, including angiopoietin-2 (Ang-2).: Objectives: At ... ...
Abstract | Background: Biosynthesis of von Willebrand factor (VWF) in endothelial cells drives the formation of storage-organelles known as Weibel-Palade bodies (WPBs). WPBs also contain several other proteins, including angiopoietin-2 (Ang-2). Objectives: At present, the molecular basis of the VWF-Ang-2 interaction is poorly understood. Here, we used immunosorbent-binding assays and specific recombinant VWF fragments to analyze VWF-Ang-2 interactions. Results: We found that VWF bound to immobilized Ang-2 most efficiently (half-maximal binding at 0.5 ± 0.1 μg/mL) under conditions of high CaCl Conclusion: Our data show that both Ang-1 and Ang-2 bind to VWF, seemingly using different interactive sites. Ang-2 modulates the binding of VWF to Ang-1, the (patho)-physiological consequences of which remain to be investigated. |
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Language | English |
Publishing date | 2023-09-19 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 2475-0379 |
ISSN (online) | 2475-0379 |
DOI | 10.1016/j.rpth.2023.102204 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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