General Information of Drug Therapeutic Target (DTT) (ID: TTQL5VC)

DTT Name Platelet-activating factor receptor (PTAFR)
Synonyms PTAFR; PAF-R
Gene Name PTAFR
DTT Type
Successful target
[1]
Related Disease
Ischaemic/haemorrhagic stroke [ICD-11: 8B20]
BioChemical Class
GPCR rhodopsin
UniProt ID
PTAFR_HUMAN
TTD ID
T87023
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Sequence
MEPHDSSHMDSEFRYTLFPIVYSIIFVLGVIANGYVLWVFARLYPCKKFNEIKIFMVNLT
MADMLFLITLPLWIVYYQNQGNWILPKFLCNVAGCLFFINTYCSVAFLGVITYNRFQAVT
RPIKTAQANTRKRGISLSLVIWVAIVGAASYFLILDSTNTVPDSAGSGNVTRCFEHYEKG
SVPVLIIHIFIVFSFFLVFLIILFCNLVIIRTLLMQPVQQQRNAEVKRRALWMVCTVLAV
FIICFVPHHVVQLPWTLAELGFQDSKFHQAINDAHQVTLCLLSTNCVLDPVIYCFLTKKF
RKHLTEKFYSMRSSRKCSRATTDTVTEVVVPFNQIPGNSLKN
Function
Receptor for platelet activating factor, a chemotactic phospholipid mediator that possesses potent inflammatory, smooth- muscle contractile and hypotensive activity. Seems to mediate its action via a G protein that activates a phosphatidylinositol- calcium second messenger system.
KEGG Pathway
Calcium signaling pathway (hsa04020 )
Neuroactive ligand-receptor interaction (hsa04080 )
Staphylococcus aureus infection (hsa05150 )
Reactome Pathway
G alpha (q) signalling events (R-HSA-416476 )
Interferon gamma signaling (R-HSA-877300 )
Class A/1 (Rhodopsin-like receptors) (R-HSA-373076 )

Molecular Interaction Atlas (MIA) of This DTT

Molecular Interaction Atlas (MIA) Jump to Detail Molecular Interaction Atlas of This DTT
2 Approved Drug(s) Targeting This DTT
Drug Name Drug ID Indication ICD 11 Highest Status REF
Ticlopidine DMO946V Stroke 8B20 Approved [1]
Rupatadine DMBPN7T N. A. N. A. Phase 4 [2]
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7 Clinical Trial Drug(s) Targeting This DTT
Drug Name Drug ID Indication ICD 11 Highest Status REF
ISRAPAFANT DMP61YB Asthma CA23 Phase 3 [3], [4]
60P002 DMHBN8X Dengue 1D20-1D2Z Phase 2 [5]
CMI-392 DM1NCUY Psoriasis vulgaris EA90 Phase 2 [6]
Dersalazine DMH96JW Inflammatory bowel disease DD72 Phase 2 [7]
Lexipafant DMZ2YBE Nerve injury ND56.4 Phase 2 [8]
YM-264 DMAZNVX Sepsis 1G40-1G41 Phase 2 [9]
PegCNTF DMW7VGZ Obesity 5B81 Phase 1 [10]
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⏷ Show the Full List of 7 Clinical Trial Drug(s)
33 Discontinued Drug(s) Targeting This DTT
Drug Name Drug ID Indication ICD 11 Highest Status REF
BN 50730 DMZK70E Asthma CA23 Discontinued in Phase 3 [11], [12]
FOROPAFANT DML1DGP Asthma CA23 Discontinued in Phase 3 [13], [14], [4]
BN50727 DMC35T1 Inflammatory bowel disease DD72 Discontinued in Phase 2 [15]
DE-081 DM3AVO1 Conjunctivitis 9A60 Discontinued in Phase 2 [16], [17], [18]
E-6123 DMUW6QX Asthma CA23 Discontinued in Phase 2 [19]
Minopafant DMVF2R1 Sepsis 1G40-1G41 Discontinued in Phase 2 [20]
MK-287 DMCAKPG Sepsis 1G40-1G41 Discontinued in Phase 2 [21], [4]
Ro-24-4736 DM01MRZ Sepsis 1G40-1G41 Discontinued in Phase 2 [22]
SM-10661 DMZYGW0 Sepsis 1G40-1G41 Discontinued in Phase 2 [23], [4]
TCV-309 DM3VZ87 Sepsis 1G40-1G41 Discontinued in Phase 2 [24]
UK-74505 DMAD1S5 Sepsis 1G40-1G41 Discontinued in Phase 2 [25]
ABT-299 DM8GZAS Sepsis 1G40-1G41 Discontinued in Phase 1 [26]
AGN-191743 DM8XODL Allergy 4A80-4A85 Discontinued in Phase 1 [27]
DACOPAFANT DMDUZ5W Sepsis 1G40-1G41 Discontinued in Phase 1 [28], [4]
DF-1111301 DMZYVFH Allergy 4A80-4A85 Discontinued in Phase 1 [29], [4]
SDZ-62-434 DMU3TQJ Solid tumour/cancer 2A00-2F9Z Discontinued in Phase 1 [30], [4]
Bepafant DMVK78Q Sepsis 1G40-1G41 Terminated [31]
BN-50726 DMTKJDS Nerve injury ND56.4 Terminated [32]
BN50739 DMU1TRQ Cerebral infarction 8B11.5Z Terminated [33], [34]
CL-184005 DMJBGI1 Sepsis 1G40-1G41 Terminated [35]
CMI-206 DMEIW7K Inflammation 1A00-CA43.1 Terminated [36]
CV 6209 DMQBULC Asthma CA23 Terminated [37]
FR-128998 DMMOBHW Thrombocytopenia 3B64 Terminated [38]
KC-11404 DM3H90W Asthma CA23 Terminated [39]
KC-11425 DMC295V Asthma CA23 Terminated [40]
L-659989 DMLENQ7 N. A. N. A. Terminated [41]
Ro-24-0238 DMJQA0D Sepsis 1G40-1G41 Terminated [42]
Sch-40338 DM3G5IB Allergy 4A80-4A85 Terminated [43]
SDZ-64-412 DM2CBTU N. A. N. A. Terminated [44]
TIAPAFANT DM0SCDB Sepsis 1G40-1G41 Terminated [45], [4]
TULOPAFANT DMASENP Cardiac arrhythmias BC9Z Terminated [46], [4]
UR-12460 DMV8GUE Thrombosis DB61-GB90 Terminated [47]
WEB-2347 DMY9NG1 Allergy 4A80-4A85 Terminated [48]
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⏷ Show the Full List of 33 Discontinued Drug(s)
32 Investigative Drug(s) Targeting This DTT
Drug Name Drug ID Indication ICD 11 Highest Status REF
10-OBn-7alpha-F-gingkolide B DMM9GEA Discovery agent N.A. Investigative [49]
10-OBn-epi-ginkgolide C DMAM5WJ Discovery agent N.A. Investigative [49]
10-OBn-ginkgolide B DMS0I5V Discovery agent N.A. Investigative [49]
10-OBn-ginkgolide C DMOXKLH Discovery agent N.A. Investigative [49]
2-O-ethyl-PAF C-16 DMZK0JV Discovery agent N.A. Investigative [17]
2-O-methyl-PAF C-18 DME7K64 Discovery agent N.A. Investigative [17]
7-epi-ginkgolide C DMRAZDW Discovery agent N.A. Investigative [49]
7alpha-Cl-ginkgolide B DMD6UC9 Discovery agent N.A. Investigative [49]
7alpha-F-ginkgolide B DMRQ24A Discovery agent N.A. Investigative [49]
7alpha-N3-ginkgolide B DMGNWBV Discovery agent N.A. Investigative [49]
7alpha-NH2-ginkgolide B DMZUYX1 Discovery agent N.A. Investigative [49]
7alpha-NHEt-ginkgolide B DMWAB7F Discovery agent N.A. Investigative [49]
7alpha-NHMe-ginkgolide B DMSPLYF Discovery agent N.A. Investigative [49]
7alpha-OAc-ginkgolide B DMN1U56 Discovery agent N.A. Investigative [49]
7alpha-OCOCH2Ph-ginkgolide B DMGAPCD Discovery agent N.A. Investigative [49]
A 137491 DM1H3FJ Discovery agent N.A. Investigative [50]
BB-823 DMZPL63 Discovery agent N.A. Investigative [47]
CV-3988 DMM7RAD Discovery agent N.A. Investigative [51]
enantio PAF C-16 DMASQWV Discovery agent N.A. Investigative [17]
FR-900452 DMMGWXQ Discovery agent N.A. Investigative [52]
KO-286011 DMVGNZJ Discovery agent N.A. Investigative [53]
L-652731 DM360VU Discovery agent N.A. Investigative [41]
LAU-0901 DMMDZ4B Brain ischaemia 8B1Z Investigative [54], [55]
methylcarbamyl PAF DMV865Q Discovery agent N.A. Investigative [56]
PAF DMRZAQW Discovery agent N.A. Investigative [57], [58]
RP-52770 DM5IXOS Discovery agent N.A. Investigative [59]
SRI-63-675 DM8GDZS Discovery agent N.A. Investigative [60]
UR-10324 DMPF1VU Discovery agent N.A. Investigative [61]
UR-11353 DM8G9NY Discovery agent N.A. Investigative [61]
UR-12510 DM2HVUW Allergy 4A80-4A85 Investigative [62]
UR-12519 DMVZQ47 Discovery agent N.A. Investigative [63]
VERAGUENSIN DMJRVBS Discovery agent N.A. Investigative [41]
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⏷ Show the Full List of 32 Investigative Drug(s)

Molecular Expression Atlas (MEA) of This DTT

Molecular Expression Atlas (MEA) Jump to Detail Molecular Expression Atlas of This DTT
Disease Name ICD 11 Studied Tissue p-value Fold-Change Z-score
Psoriasis EA90 Skin 5.94E-02 0.08 0.17
Asthma CA23 Nasal and bronchial airway 3.75E-05 0.25 0.35
Thrombocytopenia 3B64 Whole blood 4.42E-01 0.49 1.01
Sepsis with septic shock 1G41 Whole blood 2.87E-10 0.6 0.77
Sjogren's syndrome 4A43.2 Salivary gland tissue 3.53E-02 0.33 2.12
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References

1 Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services.
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3 Amino acid residues critical for endoplasmic reticulum export and trafficking of platelet-activating factor receptor. J Biol Chem. 2010 Feb 19;285(8):5931-40.
4 Therapeutic target database update 2012: a resource for facilitating target-oriented drug discovery. Nucleic Acids Res. 2012 Jan;40(Database issue):D1128-36.
5 Clinical pipeline report, company report or official report of 60 Degrees Pharmaceuticals.
6 Anti-inflammatory activities of LDP-392, a dual PAF receptor antagonist and 5-lipoxygenase inhibitor. Pharmacol Res. 2001 Sep;44(3):213-20.
7 The intestinal anti-inflammatory effect of dersalazine sodium is related to a down-regulation in IL-17 production in experimental models of rodent colitis. Br J Pharmacol. 2012 February; 165(3): 729-740.
8 Lexipafant and acute pancreatitis: a critical appraisal of the clinical trials.Eur J Surg.2002;168(4):215-9.
9 Effects of YM264, a novel PAF antagonist, on puromycin aminonucleoside-induced nephropathy in the rat. Biochem Biophys Res Commun. 1991 Apr 30;176(2):781-5.
10 Sch 37370: a new drug combining antagonism of platelet-activating factor (PAF) with antagonism of histamine. Agents Actions Suppl. 1991;34:313-21.
11 Platelet-activating factor antagonist BN 50730 attenuates hypoxic-ischemic brain injury in neonatal rats. Pediatr Res. 2001 Jun;49(6):804-11.
12 Effects of BN-50730 (PAF receptor antagonist) and physostigmine (AChE inhibitor) on learning and memory in mice. Methods Find Exp Clin Pharmacol. 1997 Nov;19(9):585-8.
13 Biochemical and pharmacological activities of SR 27417, a highly potent, long-acting platelet-activating factor receptor antagonist. J Pharmacol Exp Ther. 1991 Oct;259(1):44-51.
14 In vitro inhibitory effect of SR 27417, a potent platelet-activating factor (PAF) receptor antagonist, on the PAF-induced bovine platelet aggregation. Vet Res. 2000 Mar-Apr;31(2):267-72.
15 Platelet-activating factor preferentially stimulates the phospholipase A2/cyclooxygenase cascade in the rabbit cornea. Curr Eye Res. 1995 Sep;14(9):769-75.
16 Characterization of [3H]apafant binding to PAF receptor on rabbit platelet membranes: a comparison of a microplate filtration system and a standard... J Pharmacol Toxicol Methods. 1996 Sep;36(1):53-62.
17 A radioreceptor binding assay for platelet-activating factor (PAF) using membranes from CHO cells expressing human PAF receptor. J Immunol Methods. 1995 Oct 26;186(2):225-31.
18 Emerging drugs for ocular allergy. Expert Opin Emerg Drugs. 2005 Aug;10(3):505-20.
19 Inhibitory effects of a novel PAF antagonist E6123 on anaphylactic responses in passively and actively sensitized guinea pigs and passively sensiti... Prostaglandins. 1991 Dec;42(6):541-55.
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21 MK 287: a potent, specific, and orally active receptor antagonist of platelet-activating factor. J Lipid Mediat. 1993 Jun;7(2):115-34.
22 Pharmacology of a potent platelet-activating factor antagonist: Ro 24-4736. J Pharmacol Exp Ther. 1991 Oct;259(1):78-85.
23 Effect of the PAF-receptor antagonist SM-12502 on human platelets. Inflammation. 1996 Feb;20(1):71-85.
24 Inhibitory effect of TCV-309, a novel platelet activating factor (PAF) antagonist, on endotoxin-induced disseminated intravascular coagulation in r... Thromb Res. 1993 May 15;70(4):281-93.
25 Differential effects of the PAF receptor antagonist UK-74,505 on neutrophil and eosinophil accumulation in guinea-pig skin. Br J Pharmacol. 1994 Oct;113(2):513-21.
26 ABT-299, a novel PAF antagonist, attenuates multiple effects of endotoxemia in conscious rats. Shock. 1996 Aug;6(2):112-7.
27 US patent application no. 6,274,627, Conjugates of dithiocarbamate disulfides with pharmacologically active agents and uses therefor.
28 RP 55778, a PAF receptor antagonist, prevents and reverses LPS-induced hemoconcentration and TNF release. J Lipid Mediat. 1989 Nov-Dec;1(6):349-60.
29 US patent application no. 2007,0196,421, Soft tissue implants and drug combination compositions, and use thereof.
30 In vitro antitumour activity of the novel imidazoisoquinoline SDZ 62-434. Br J Cancer. 1993 May;67(5):989-95.
31 Pharmacologic activity of bepafant (WEB 2170), a new and selective hetrazepinoic antagonist of platelet activating factor. J Pharmacol Exp Ther. 1990 Dec;255(3):962-8.
32 Effects of the PAF antagonists BN50726 and BN50739 on arrhythmogenesis and extent of necrosis during myocardial ischaemia/reperfusion in rabbits. Br J Pharmacol. 1992 Nov;107(3):705-9.
33 Effect of the platelet-activating factor antagonist BN 50739 and its diluents on mitochondrial respiration and membrane lipids during and following... J Neurochem. 1994 May;62(5):1929-38.
34 Pharmacologic profile of BN 50739, a new PAF antagonist in vitro and in vivo. Prostaglandins. 1990 May;39(5):469-80.
35 Studies of the effect of a platelet-activating factor antagonist, CL 184,005, in animal models of gram-negative bacterial sepsis. Antimicrob Agents Chemother. 1992 Sep;36(9):1971-7.
36 DOI: 10.1016/0960-894X(95)00088-B
37 CV-6209, a highly potent antagonist of platelet activating factor in vitro and in vivo. J Pharmacol Exp Ther. 1987 Jul;242(1):263-8.
38 Effect of FR128998, a novel PAF receptor antagonist, on endotoxin-induced disseminated intravascular coagulation. Eur J Pharmacol. 1994 Jun 13;258(3):239-46.
39 Synthesis, structure-activity relationships, and pharmacological evaluation of pyrrolo[3,2,1-ij]quinoline derivatives: potent histamine and platelet activating factor antagonism and 5-lipoxygenase inhibitory properties. Potential therapeutic application in asthma. J Med Chem. 1995 Feb 17;38(4):669-85.
40 WO patent application no. 2002,01223,5, 1,4-dihydropyridines as bradykinin antagonists.
41 Development, synthesis, and biological evaluation of (-)-trans-(2S,5S)-2-[3-[(2-oxopropyl)sulfonyl]-4-n-propoxy-5-(3- hydroxypropoxy)-phenyl]-5-(3,... J Med Chem. 1992 Sep 18;35(19):3474-82.
42 Pentadienyl carboxamide derivatives as antagonists of platelet-activating factor. J Med Chem. 1989 Aug;32(8):1820-35.
43 Conformational considerations in the design of dual antagonists of platelet-activating factor (PAF) and histamine. Bioorg Med Chem. 1999 Jul;7(7):1413-23.
44 Structural modification of 5-aryl-2,3-dihydroimidazo[2,1-a]isoquinoline platelet activating factor receptor antagonists. J Med Chem. 1993 Oct 15;36(21):3098-102.
45 PCA-4248, a PAF receptor antagonist, inhibits PAF-induced phosphoinositide turnover. Eur J Pharmacol. 1995 Aug 15;290(3):183-8.
46 Tulopafant, a PAF receptor antagonist, increases capillary patency and prolongs survival in discordant cardiac xenotransplants. J Lipid Mediat. 1993 May;7(1):79-84.
47 Platelet-activating factor: the effector of protein-rich plasma extravasation and nitric oxide synthase induction in rat immune complex peritonitis. Br J Pharmacol. 1995 Feb;114(4):895-901.
48 WEB 2347: pharmacology of a new very potent and long acting hetrazepinoic PAF-antagonist and its action in repeatedly sensitized guinea-pigs. J Lipid Mediat. 1991 Jul-Aug;4(1):39-44.
49 Preparation of 7-substituted ginkgolide derivatives: potent platelet activating factor (PAF) receptor antagonists. J Med Chem. 2003 Feb 13;46(4):601-8.
50 The role of platelet-activating factor (PAF) and the efficacy of ABT-491, a highly potent and selective PAF antagonist, in experimental allergic rhinitis. J Pharmacol Exp Ther. 1998 Jan;284(1):83-8.
51 Inhibition by CV-3988 of the binding of [3H]-platelet activating factor (PAF) to the platelet. Biochem Pharmacol. 1985 May 1;34(9):1491-5.
52 FR-900452, a specific antagonist of platelet activating factor (PAF) produced by Streptomyces phaeofaciens. I. Taxonomy, fermentation, isolation, a... J Antibiot (Tokyo). 1986 Feb;39(2):198-204.
53 Platelet-activating factor (PAF) inhibitory profile of KO-286011 on blood platelets in vitro and in vivo. Naunyn Schmiedebergs Arch Pharmacol. 1990 Dec;342(6):713-8.
54 Superior Neuroprotective Efficacy of LAU-0901, a Novel Platelet-Activating Factor Antagonist, in Experimental Stroke. Transl Stroke Res. 2012 Mar;3(1):154-63.
55 LAU-0901, a novel platelet-activating factor antagonist, is highly neuroprotective in cerebral ischemia. Exp Neurol. 2008 Dec;214(2):253-8.
56 URL: http://www.guidetopharmacology.org Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Target id: 334).
57 Identification of transmembrane domain residues determinant in the structure-function relationship of the human platelet-activating factor receptor by site-directed mutagenesis. J Biol Chem. 1996 Sep20;271(38):23298-303.
58 Single nucleotide polymorphism of human platelet-activating factor receptor impairs G-protein activation. J Biol Chem. 2001 Nov 16;276(46):43025-30.
59 [3H]52770 RP, a platelet-activating factor receptor antagonist, and tritiated platelet-activating factor label a common specific binding site in human polymorphonuclear leukocytes. J Pharmacol Exp Ther. 1988 Feb;244(2):709-15.
60 The effect of SRI 63-675, a competitive platelet-activating factor receptor-antagonist, in the generalized Shwartzman reaction. J Lipid Mediat Cell Signal. 1994 Sep;10(3):229-42.
61 Effects of PAF-antagonists in mouse ear oedema induced by several inflammatory agents. Br J Pharmacol. 1991 Dec;104(4):990-4.
62 US patent application no. 6,673,908, Tumor necrosis factor receptor 2.
63 Evidence for the autocrine induction of capacitation of mammalian spermatozoa.J Biol Chem.2001 Jul 20;276(29):26962-8.