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Devazepide
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Devazepide图片
CAS NO:103420-77-5
包装与价格:
包装价格(元)
10mM (in 1mL DMSO)电议
5mg电议
10mg电议
25mg电议
50mg电议
100mg电议

产品介绍
Devazepide (L-364,718) 是一种有效、竞争性、选择性和口服活性的胆囊收缩素 (CCK) 受体非肽拮抗剂,对大鼠胰腺、牛胆囊和豚鼠脑 CCK 受体的 IC50 分别为 81 pM、45 pM 和 245 nM .
Cas No.103420-77-5
别名地伐西匹; L-364,718; MK-329
化学名(S)-N-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-3-yl)-1H-indole-2-carboxamide
Canonical SMILESO=C1N(C)C2=CC=CC=C2C(C3=CC=CC=C3)=N[C@@H]1NC(C4=CC5=CC=CC=C5N4)=O
分子式C25H20N4O2
分子量408.46
溶解度<40.85mg/ml in DMSO;<20.42mg/ml in ethanol
储存条件Store at -20℃, sealed storage, away from moisture and light
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping ConditionEvaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
产品描述

Devazepide is a potent CCK-A receptor antagonist with IC50 of 0.26 nM. [1]

Cholecystokinin (CCK) has long been recognized as the dominant regulator of gallbladder contraction. The cholecystokinetic activity of different fragments of CCK in human has been established in several studies both in vivo and in vitro. There are two subtypes of CCK receptor that were identified, CCK-A and CCK-B. CCK-A are mainly located in peripheral tissues but also found in brain, while CCK-B distribute throughout the rodent central nervous system.

Devazeptide inhibitory effect against sulphated C-terminal octapeptide of cholecystokinin (CCK-8) on total [3H] inositol phosphate accumulation in CHO-AI cells was investigated. The results revealed that devazepide possesses an inhibitory effect with IC50 of 0.26 ± 0.06 nM. CCK-8 is considered to be the most potent endogenous anti-opiate agent. Morphine analgesia could be antagonized by treatment of CCK-8. However, the effect of CCK-8 could be reversed by devazeptide which could also potentiate analgesia of morphine greatly at doses of 50ng and 200ng. [2, 3]

Devazepide is a benzodiazepine derivative that interacts competitively with rat pancreatic CCK receptors as determined by Scatchard analysis against the specific binding of 125I-labelled CCK. In guinea-pig isolated ileum and colon, devazepide competitively blocked CCK-induced contractions with a potency greatly exceeding that of other non-peptide CCK antagonists such as proglumide, dibutyryl cyclic GMP and benzotript. It is confirmed that devazepide is a highly potent CCK-OP antagonist in this tissue. [4]

References:
[1] Dickenson, John M. , and Stephen J. Hill. "Synergistic interactions between human transfected adenosine A 1 receptors and endogenous cholecystokinin receptors in CHO cells."?European journal of pharmacology?302.1 (1996): 141-151.
[2] Lavigne, G.  J., W. R. Millington, and G. P. Mueller. "The CCK-A and CCK-B receptor antagonists, devazepide and L-365,260, enhance morphine antinociception only in non-acclimated rats exposed to a novel environment."Neuropeptides?21.2 (1992): 119-129.
[3] Pu, Su-Fen, Hui-Xin Zhuang, and Ji-Sheng Han.  "Cholecystokinin octapeptide (CCK-8) antagonizes morphine analgesia in nucleus accumbens of the rat via the CCK-B receptor."?Brain research?657.1 (1994): 159-164.
[4] D'amato, M. , I. F. Stamford, and A. Bennett. "Studies of three non‐peptide cholecystokinin antagonists (devazepide, lorglumide and loxiglumide) in human isolated alimentary muscle and guinea‐pig ileum."?British journal of pharmacology?102.2 (1991): 391-395.