Bombesin is a 14-amino acid peptide originally isolated from the skin of the European fire-bellied toad (Bombina bombina). It has two known homologs in mammals called neuromedin B and gastrin-releasing peptide.
Bombesin receptor antagonist that inhibits bombesin binding to rat brain with an IC50 value of 2 μM. Inhibits amylase release in vitro (IC50 = 4 μM) and attenuates bombesin-mediated suppression of food intake in vivo.
[D-Cys6,Asn7,D-Ala11,Cys14]-Bombesin (6-14),该合成肽是一种非选择性激动剂,作用于蛙皮素受体。它对三种蛙皮素受体的pEC50分别为:神经介素 B 偏好的BB1为8.06、胃泌素释放肽偏好的BB2为8.69、以及孤儿受体BB3为6.71。此化合物被用于涉及蛙皮素受体的疾病研究,包括癌症和神经系统疾病等。