Title : Receptor and mechanism that mediate endothelin- and big endothelin-1-induced phosphoinositide hydrolysis in the rat spinal cord.

Pub. Date : 1996 Nov 21

PMID : 8982672






4 Functional Relationships(s)
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1 In rat spinal cord slices, endothelin-1 and endothelin-3 enhanced [3H]inositol phosphate production between 1 nM and 10 microM (endothelin-1 > endothelin-3) while sarafotoxin 6c and the endothelin ETB receptor agonist IRL-1620 (Suc-[Glu9,Ala11,15]endothelin-1-(8-21)) were almost ineffective. Inositol Phosphates endothelin 1 Rattus norvegicus
2 In rat spinal cord slices, endothelin-1 and endothelin-3 enhanced [3H]inositol phosphate production between 1 nM and 10 microM (endothelin-1 > endothelin-3) while sarafotoxin 6c and the endothelin ETB receptor agonist IRL-1620 (Suc-[Glu9,Ala11,15]endothelin-1-(8-21)) were almost ineffective. Inositol Phosphates endothelin 1 Rattus norvegicus
3 In rat spinal cord slices, endothelin-1 and endothelin-3 enhanced [3H]inositol phosphate production between 1 nM and 10 microM (endothelin-1 > endothelin-3) while sarafotoxin 6c and the endothelin ETB receptor agonist IRL-1620 (Suc-[Glu9,Ala11,15]endothelin-1-(8-21)) were almost ineffective. Inositol Phosphates endothelin 1 Rattus norvegicus
4 BQ-123 (cyclo(D-Trp,D-Asp,L-Pro,D-Val,L-Leu), a selective endothelin ETA receptor antagonist, reduced the endothelin-1- and endothelin-3-induced [3H]inositol phosphate production, with similar inhibition constants (IC50: 16.7 +/- 3.4 and 8.0 +/- 1.6 microM, respectively). Inositol Phosphates endothelin 1 Rattus norvegicus