A Novel G13-RAPGEF2-RAP1 Signaling Pathway Critical for Platelet Adhesion - PubMed
6 hours ago
- #Cardiovascular Research
- #Platelet Signaling
- #RAP1 Activation
- The study identifies a new G13-RAPGEF2-RAP1 signaling pathway essential for platelet adhesion.
- RAPGEF2, a low expressed RAP-GEF, plays a critical role in platelet function, especially under shear stress.
- Mice deficient in both RAPGEF2 and CalDAG-GEFI show significantly reduced RAP1 activation and integrin-mediated platelet aggregation.
- RAPGEF2 operates downstream of G13-coupled receptors, such as integrin αIIbβ3 and thromboxane receptor.
- The findings enhance understanding of platelet signaling and may aid in developing therapies for cardiovascular diseases.