Bombesin is a 14-amino acid peptide[1] originally isolated from the skin of the European fire-bellied toad (Bombina bombina).[2] It has two known homologs in mammals called neuromedin B and gastrin-releasing peptide. It stimulates gastrin release from G cells. It activates three different G-protein-coupled receptors known as BBR1, -2, and -3.[3] It also activates these receptors in the brain. Together with cholecystokinin, it is the second major source of negative feedback signals that stop eating behaviour.[4]

Other names
3D model (JSmol)
Molar mass 1619.85
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Bombesin is also a tumor marker for small cell carcinoma of lung, gastric cancer, pancreatic cancer, and neuroblastoma.[5]

See also


  1. Gonzalez N, Moody TW, Igarashi H, Ito T, Jensen RT (February 2008). "Bombesin-related peptides and their receptors: recent advances in their role in physiology and disease states". Current Opinion in Endocrinology, Diabetes and Obesity. 15 (1): 58–64. doi:10.1097/MED.0b013e3282f3709b. PMC 2631407. PMID 18185064.
  2. "Isolation and Structure of Bombesin and Alytesin, two Analogous Active Peptides from the Skin of the European Amphibians Bombina and Alytes" by A. ANASTASI, V. ERSPAMER and M. BuccI
  3. Weber HC (February 2009). "Regulation and signaling of human bombesin receptors and their biological effects". Current Opinion in Endocrinology, Diabetes and Obesity. 16 (1): 66–71. doi:10.1097/med.0b013e32831cf5aa. PMID 19115523.
  4. Yamada K, Wada E, Wada K (November 2000). "Bombesin-like peptides: studies on food intake and social behaviour with receptor knock-out mice". Annals of Medicine. 32 (8): 519–29. doi:10.3109/07853890008998831. PMID 11127929.
  5. Ohlsson B, Fredäng N, Axelson J (December 1999). "The effect of bombesin, cholecystokinin, gastrin, and their antagonists on proliferation of pancreatic cancer cell lines". Scandinavian Journal of Gastroenterology. 34 (12): 1224–9. doi:10.1080/003655299750024742. PMID 10636070.
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