Proteinase-activated receptor 1 (PAR1) also known as Protease-activated receptor 1 or coagulation factor II (thrombin) receptor is a protein that in humans is encoded by the F2Rgene.[1] PAR1 is a G protein-coupled receptor involved in the regulation of thrombotic response. Proteolytic cleavage leads to the activation of the receptor.[2]
PAR-1 has multifaceted effects and plays a key role in mediating the interplay between coagulation and inflammation, which is important in the pathogenesis of inflammatory and fibrotic lung diseases.[3] It is involved both in disruption and maintaining of endothelial barrier integrity, through interaction with either thrombin or activated protein C, respectively.[4]
↑Bahou WF, Nierman WC, Durkin AS, Potter CL, Demetrick DJ (Sep 1993). "Chromosomal assignment of the human thrombin receptor gene: localization to region q13 of chromosome 5". Blood. 82 (5): 1532–7. PMID8395910.
↑"José RJ, Williams AE, Chambers RC (Feb 2014). "Proteinase-activated receptors in fibroproliferative lung disease". Thorax. 69 (2): 190–2. doi:10.1136/thoraxjnl-2013-204367. PMID24186921.
↑Feistritzer C, Riewald M (Apr 2005). "Endothelial barrier protection by activated protein C through PAR1-dependent sphingosine 1–phosphate receptor-1 crossactivation". blood. 105 (8): 3178–84. doi:10.1182/blood-2004-10-3985. PMID15626732.
Howell DC, Laurent GJ, Chambers RC (Apr 2002). "Role of thrombin and its major cellular receptor, protease-activated receptor-1, in pulmonary fibrosis". Biochemical Society Transactions. 30 (2): 211–6. doi:10.1042/BST0300211. PMID12023853.
Tellez C, Bar-Eli M (May 2003). "Role and regulation of the thrombin receptor (PAR-1) in human melanoma". Oncogene. 22 (20): 3130–7. doi:10.1038/sj.onc.1206453. PMID12789289.
Remillard CV, Yuan JX (May 2005). "PGE2 and PAR-1 in pulmonary fibrosis: a case of biting the hand that feeds you?". American Journal of Physiology. Lung Cellular and Molecular Physiology. 288 (5): L789–92. doi:10.1152/ajplung.00016.2005. PMID15821019.
Traynelis SF, Trejo J (May 2007). "Protease-activated receptor signaling: new roles and regulatory mechanisms". Current Opinion in Hematology. 14 (3): 230–5. doi:10.1097/MOH.0b013e3280dce568. PMID17414212.
Vu TK, Hung DT, Wheaton VI, Coughlin SR (Mar 1991). "Molecular cloning of a functional thrombin receptor reveals a novel proteolytic mechanism of receptor activation". Cell. 64 (6): 1057–68. doi:10.1016/0092-8674(91)90261-V. PMID1672265.
Wojtukiewicz MZ, Tang DG, Ben-Josef E, Renaud C, Walz DA, Honn KV (Feb 1995). "Solid tumor cells express functional "tethered ligand" thrombin receptor". Cancer Research. 55 (3): 698–704. PMID7834643.
Hein L, Ishii K, Coughlin SR, Kobilka BK (Nov 1994). "Intracellular targeting and trafficking of thrombin receptors. A novel mechanism for resensitization of a G protein-coupled receptor". The Journal of Biological Chemistry. 269 (44): 27719–26. PMID7961693.
Mathews II, Padmanabhan KP, Ganesh V, Tulinsky A, Ishii M, Chen J, Turck CW, Coughlin SR, Fenton JW (Mar 1994). "Crystallographic structures of thrombin complexed with thrombin receptor peptides: existence of expected and novel binding modes". Biochemistry. 33 (11): 3266–79. doi:10.1021/bi00177a018. PMID8136362.
Hoffman M, Church FC (Aug 1993). "Response of blood leukocytes to thrombin receptor peptides". Journal of Leukocyte Biology. 54 (2): 145–51. PMID8395550.
Schmidt VA, Vitale E, Bahou WF (Apr 1996). "Genomic cloning and characterization of the human thrombin receptor gene. Structural similarity to the proteinase activated receptor-2 gene". The Journal of Biological Chemistry. 271 (16): 9307–12. doi:10.1074/jbc.271.16.9809. PMID8621593.
Li F, Baykal D, Horaist C, Yan CN, Carr BN, Rao GN, Runge MS (Oct 1996). "Cloning and identification of regulatory sequences of the human thrombin receptor gene". The Journal of Biological Chemistry. 271 (42): 26320–8. doi:10.1074/jbc.271.42.26320. PMID8824285.
Shapiro MJ, Trejo J, Zeng D, Coughlin SR (Dec 1996). "Role of the thrombin receptor's cytoplasmic tail in intracellular trafficking. Distinct determinants for agonist-triggered versus tonic internalization and intracellular localization". The Journal of Biological Chemistry. 271 (51): 32874–80. doi:10.1074/jbc.271.51.32874. PMID8955127.
Ogino Y, Tanaka K, Shimizu N (Nov 1996). "Direct evidence for two distinct G proteins coupling with thrombin receptors in human neuroblastoma SH-EP cells". European Journal of Pharmacology. 316 (1): 105–9. doi:10.1016/S0014-2999(96)00653-X. PMID8982657.
Molino M, Bainton DF, Hoxie JA, Coughlin SR, Brass LF (Feb 1997). "Thrombin receptors on human platelets. Initial localization and subsequent redistribution during platelet activation". The Journal of Biological Chemistry. 272 (9): 6011–7. doi:10.1074/jbc.272.9.6011. PMID9038223.
Renesto P, Si-Tahar M, Moniatte M, Balloy V, Van Dorsselaer A, Pidard D, Chignard M (Mar 1997). "Specific inhibition of thrombin-induced cell activation by the neutrophil proteinases elastase, cathepsin G, and proteinase 3: evidence for distinct cleavage sites within the aminoterminal domain of the thrombin receptor". Blood. 89 (6): 1944–53. PMID9058715.