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Olcegepant hydrochloride

CAS No. : 586368-06-1

MCE 站：Olcegepant hydrochloride

产品活性：Olcegepant hydrochloride (BIBN-4096 hydrochloride) 是高效选择性的降钙素基因相关肽 (CGRP) 的拮抗剂, 对人类CGRP的 K_i 值为 14.4 pM。

研究领域：GPCR/G Protein  |  Neuronal Signaling

作用靶点：CGRP Receptor

In Vitro: Olcegepant possesses higher affinity for the human CGRP receptor than the endogenous ligand CGRP and 150-fold higher affinity compared to the peptidic antagonist CGRP8-37. Olcegepant reverses CGRP-mediated vasodilation in human cerebral vessels and inhibits neurogenic vasodilation in a surrogate animal model of migraine pathophysiology. Olcegepant (BIBN4096BS) is extremely potent at primate CGRP receptors exhibiting an affinity (K_i) for human CGRP receptors of 14.4±6.3 (n=4) pM. Several lines of evidence suggest that a calcitonin-gene related peptide (CGRP) receptor antagonist may serve as a novel abortive migraine treatment. Olcegepant (BIBN4096BS) exhibits competitive antagonism at the CGRP receptor present in SK-N-MC cells. Isolated human cerebral, coronary, and omental arteries are studied with a sensitive myograph technique. CGRP induces a concentration-dependent relaxation that is antagonized by Olcegepant in a competitive manner.

In Vivo: Olcegepant (BIBN4096BS) in doses between 1 and 30 μg/kg (i.v.) inhibits the effects of CGRP, released by stimulation of the trigeminal ganglion, on facial blood flow in marmoset monkeys. Pre-treatment with Olcegepant (900 μg/kg) inhibits the capsaicin-induced expression of Fos throughout the spinal trigeminal nucleus by 57%. In contrast, the expression of phosphorylated extracellular signal-regulated kinase in the trigeminal ganglion is not changed by Olcegepant pre-treatment. Olcegepant (0.3 to 0.9 mg/kg, i.v.) markedly reduces mechanical allodynia in CCI-ION rats. Olcegepant (0.6 mg/kg, i.v.) significantly reduces the number of c-Fos immunolabeled cells in spinal nucleus of the trigeminal nerve and upregulation of ATF3 transcript (a marker of neuron injury) but not that of interleukin-6 in trigeminal ganglion of CCI-ION rats.

相关产品：Olcegepant  |  Calcitonin (salmon)  |  Rat CGRP-(8-37)  |  Calcitonin Gene Related Peptide (CGRP) (83-119), rat TFA  |  β-CGRP, human TFA  |  Adrenomedullin (AM) (22-52), human  |  Ubrogepant  |  Calcitonin (human)  |  HCGRP-(8-37)  |  Adrenomedullin (11-50), rat  |  Adrenomedullin (16-31), human  |  Kendomycin  |  PHM-27 (human)  |  Adrenomedullin (1-50), rat  |  CGRP antagonist 1

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