Review
Copyright ©The Author(s) 2016.
World J Gastroenterol. Dec 21, 2016; 22(47): 10275-10286
Published online Dec 21, 2016. doi: 10.3748/wjg.v22.i47.10275
Table 2 Preclinical studies investigating the effects of protease-activated receptor-targeting molecules on visceral hypersensitivity
PARAgonist/antagonistSpecies (hypersensitivity model)Study typeEffectRef.
PAR-1Agonist (thrombin, TFLLR-NH2)Rat (carrageenan)In vivo↓ hyperalgesia[56]
PAR-1Agonist (TFLLR-NH2)Mice (capsaicin)In vivo↓ hyperalgesia[55]
PAR-2Agonist (SLIGRL-NH2)Mice (PAR2-agonist)In vivo↑ hyperalgesia[59]
PAR-2Agonist (SLIGRL-NH2, trypsin)Rat (PAR2-agonist)In vivo↑ hyperalgesia[60]
PAR-2Agonist (SL-NH2, trypsin, typtase)Guinea pig submucosal neurons (PAR2-agonist)Ex vivo↑ neuron excitability[61]
PAR-2Agonist (SLIGRL-NH2, Tc-NH2, trypsin, tryptase)Mice, rat (PAR2-agonist)KO↑ hyperalgesia, absent in KO[62]
PAR-2Agonist (2-furoyl-LIGRL-NH2)Mice (capsaicin)KO↑ hyperalgesia, absent in KO[63]
PAR-2Antagonist (ENMD-1068)Mice (IBS-supernatant)KO↓ hypersensitivity, absent in KO[41]
PAR-2/Mice DRG (IBS-D supernatant)KO↑ neuron excitability, absent in KO[64]
PAR-4Agonist (PAR-4-AP, Cat-G)Mice (IBS-D supernatant)In vivo↓ hypersensitivity[49]
PAR-4Agonist (AYPGKF-NH2)Mice (PAR2-agonist, TRPV4-agonist)In vivo↓ hypersensitivity[57]