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A Role for Thrombin Receptor Signaling in Endothelial Cells During Embryonic Development
Abstract
The coagulation protease thrombin triggers fibrin formation, platelet activation, and other cellular responses at sites of tissue injury. We report a role for PAR1, a protease-activated G protein–coupled receptor for thrombin, in embryonic development. Approximately half of Par1 –/– mouse embryos died at midgestation with bleeding from multiple sites. PAR1 is expressed in endothelial cells, and a PAR1 transgene driven by an endothelial-specific promoter prevented death of Par1 –/– embryos. Our results suggest that the coagulation cascade and PAR1 modulate endothelial cell function in developing blood vessels and that thrombin's actions on endothelial cells—rather than on platelets, mesenchymal cells, or fibrinogen—contribute to vascular development and hemostasis in the mouse embryo.
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Cited by
Protease-Activated Receptors: Contribution to Physiology and Disease
OSSOVSKAYA, V. S., & BUNNETT, N. W. (2004) · Physiological Reviews · doi:10.1152/physrev.00028.2003 · Cited by 1,078
Role of Tissue Factor in Hemostasis, Thrombosis, and Vascular Development
Mackman, N. (2004) · Arteriosclerosis, Thrombosis, and Vascular Biology · doi:10.1161/01.atv.0000130465.23430.74 · Cited by 658
Structure, function and pathophysiology of protease activated receptors
Adams, M. N., Ramachandran, R., Yau, M.-K., Suen, J. Y., Fairlie, D. P., Hollenberg, M. D., & Hooper, J. D. (2011) · Pharmacology & Therapeutics · doi:10.1016/j.pharmthera.2011.01.003 · Cited by 370
Metadata
- Authors
- Griffin, C. T., Srinivasan, Y., Zheng, Y.-W., Huang, W., & Coughlin, S. R.
- Venue
- Science
- Published
- 2001-08-31
- Volume
- 293
- Issue
- 5535
- Pages
- 1666-1670
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1990191742
- Cited by
- 267
- References
- 0
- FWCI
- 10.69
- Type
- journal article
- Language
- en
- Open access
- closed
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- Griffin, C. T., Srinivasan, Y., Zheng, Y.-W., Huang, W., & Coughlin, S. R. (2001). A Role for Thrombin Receptor Signaling in Endothelial Cells During Embryonic Development. Science. https://doi.org/10.1126/science.1061259
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