Bombesin is a 14-amino acid peptide[1] originally isolated from the skin of the European fire-bellied toad (Bombina bombina)[2] by Vittorio Erspamer et al. and named after its source.[3] 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.[4] 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.[5]

Bombesin is also a tumor marker for small cell carcinoma of lung, gastric cancer, pancreatic cancer, and neuroblastoma.[6]

Receptors

The anuran

Effects

Erspamer 1988 finds bombesin has a similar effect on the chicken to ranatensin, unreliably increasing or decreasing blood pressure.[7]

See also

References

  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. 1 2 3 Jensen, R. T.; Battey, J. F.; Spindel, E. R.; Benya, R. V. (2007-11-30). "International Union of Pharmacology. LXVIII. Mammalian Bombesin Receptors: Nomenclature, Distribution, Pharmacology, Signaling, and Functions in Normal and Disease States". Pharmacological Reviews. 60 (1). American Society for Pharmacology & Experimental Therapeutics (ASPET): 1–42. doi:10.1124/pr.107.07108. ISSN 0031-6997. PMC 2517428. PMID 18055507. NIHMSID 45053.
  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. S2CID 45482442.
  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. S2CID 24431961.
  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.