简介内容:UFP101 is a synthetic peptide that functions as an antagonist of the nociceptin receptor, demonstrating high affinity with a Ki of nM in CHO cells expressing the human receptor. It exhibits selectivity for the nociceptin receptor over the κ-opioid receptor, with a Ki of 204 nM in CHO cells expressing the rat receptor. The compound effectively inhibits GTPγS release from the nociceptin receptor in CHO cell membranes, with an EC50 of nM. When administered intracerebroventricularly at a d