How von Willebrand factor binds platelets and protects factor VIII
Mechanisms of interactions between von Willebrand factor and its binding partners
This work looks at how von Willebrand factor (VWF) grabs platelets and shields factor VIII to help people with bleeding or clotting problems.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Washington NIH-funded |
| Lab location | 1 site (Seattle, United States) |
| Project ID | NIH-11170580 on NIH RePORTER |
What this research studies
From a patient's perspective, the team will watch VWF at the single-molecule level and use super-resolution imaging to see how it changes shape under blood flow and sticks to platelet protein GPIbα. They will also examine how VWF binds and protects coagulation factor VIII on individual VWF multimers. The researchers aim to link specific changes in VWF binding to problems like von Willebrand disease or undesired clotting. Understanding these interactions could clarify why some FVIII infusions trigger immune responses.
Who could benefit from this research
Good fit: People with von Willebrand disease, other unexplained bleeding disorders, or patients receiving factor VIII infusions would be most relevant to this research.
Not a fit: People without bleeding or clotting disorders and those seeking immediate clinical treatment are unlikely to get direct benefit from this laboratory-focused research.
Why it matters
Potential benefit: If successful, this work could lead to more accurate diagnoses and safer, more effective therapies for people with von Willebrand disease or those receiving factor VIII treatment.
How similar studies have performed: Previous studies have described parts of VWF's behavior, but applying single-molecule biophysics and super-resolution imaging to these specific binding questions is relatively novel and aims to resolve unresolved mechanisms.
Where this research is happening
Seattle, United States
- University of Washington — Seattle, United States (Active)
Researchers
- Principal investigator: Fu, Hongxia — University of Washington
- Study coordinator: Fu, Hongxia
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.