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Updated: Aug 11, 2026

Ferric Chloride-induced Thrombosis Mouse Model on Carotid Artery and Mesentery Vessel
Published on: June 29, 2015
Novel targets for antithrombotic drug discovery
Nisha Nanda1, David R Phillips
1Portola Pharmaceuticals Inc., 270 E. Grand Avenue, South San Francisco, CA 94080, USA.
Platelet aggregation involves signaling molecules CD84, CD150 (SLAM), and PEAR1, which stabilize aggregates. These molecules may be targets for new antithrombotic drugs.
Area of Science:
- Hematology
- Molecular Biology
- Immunology
Background:
- Platelet aggregation is a complex process regulated by signaling cascades and secondary agonists.
- Homophilic adhesion molecules CD84 and CD150 (SLAM), and PEAR1 receptor are involved in platelet aggregation.
- These molecules are tyrosine-phosphorylated during platelet aggregation.
Purpose of the Study:
- To investigate the role of CD84, CD150 (SLAM), and PEAR1 in platelet aggregation and stability.
- To explore the potential of these molecules as targets for antithrombotic drug discovery.
Main Methods:
- Proteomics and genomics strategies were employed.
- Analysis of SLAM-deficient mice was performed to assess platelet aggregation in vitro and arterial thrombosis in vivo.
Main Results:
- CD84, CD150 (SLAM), and PEAR1 trigger signaling pathways during platelet aggregation.
- SLAM-deficient mice exhibited impaired platelet aggregation and delayed arterial thrombosis.
- These receptors may form a 'platelet synapse' to enhance aggregate stability.
Conclusions:
- CD84, CD150 (SLAM), and PEAR1 are crucial for platelet aggregation and stability.
- These receptors represent potential novel targets for developing antithrombotic therapies.
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