Radioligand binding studies reveal marked species differences in the vasopressin V1 receptor of rat, rhesus and human tissues

Autor: Roger M. Freidinger, Douglas J. Pettibone, Peter D. Williams, B. V. Clineschmidt, Maribeth T. Kishel, Carla J. Woyden, Mark G. Bock, Daniel F. Veber
Rok vydání: 1992
Předmět:
Zdroj: Life sciences. 50(25)
ISSN: 0024-3205
Popis: The [ 3 H]arginine-vasopressin ([ 3 H]AVP) binding site in rat, rhesus and human liver and nonpregnant human uterus was characterized and contrasted. [ 3 H]AVP bound with high affinity (K i values, 0.2–0.6 nM) to preparations of all tissues studied. Competition binding studies using a series of compounds from three structural classes indicate a marked species difference between the rat and primate liver AVP-V 1 site. This site in rhesus and human liver however, is essentially identical, indicating that the rhesus liver is an appropriate surrogate for human tissue. These studies also indicate that the AVP-V 1 site of nonpregnant human uterus and human liver is equivalent.
Databáze: OpenAIRE