Description
Granuliberin R is an amphiphillic antimicrobial peptide (AMP) originally found in amphibian skin. In mast cells, granuliberin R induces histamine release and increases K+ efflux. Granuliberin also inhibits basal gingival epithelial cell proliferation in animal models, potentially through a mechanism involving suppression of mitotic activity.
References
Nakao S, Komagoe K, Inoue T, et al. Comparative study of the membrane-permeabilizing activities of mastoparans and related histamine-releasing agents in bacteria, erythrocytes, and mast cells. Biochim Biophys Acta. 2011 Jan;1808(1):490-7. PMID: 20955685.
Kozakiewicz M, Godlewski A. Modulation of the mitotic activity and population of the mast cells in the oral mucosa by substance P. Cell Mol Biol Lett. 2003;8(3):727-34. PMID: 12949612.