Description
Chromostatin is a peptide fragment representing chromogranin A (124-143). Chromostatin exhibits cardiomodulatory activity, inhibiting vasoconstriction in thoracic arteries and saphenous veins induced by K+, norepinephrine, and endothelin-1. Additionally, chromostatin inhibits catecholamine secretion in chromaffin cells through the activation of protein phosphatase 2A (PP2A).
References
Garcia GE, Gabbai FB, O'Connor DT, et al. Does chromostatin influence catecholamine release or blood pressure in vivo? Peptides. 1994 Jan;15(1):195-7. PMID: 8015978.
Aardal S, Galindo E, Aunis D, et al. Human chromostatin inhibits endothelin-1-induced contractures in human blood vessels. Regul Pept. 1993 Aug 13;47(1):25-32. PMID: 8210519.
Galindo E, Zwiller J, Bader MF, et al. Chromostatin inhibits catecholamine secretion in adrenal chromaffin cells by activating a protein phosphatase. Proc Natl Acad Sci U S A. 1992 Aug 15;89(16):7398-402. PMID: 1323834.