Prolyl-glycyl-proline Peptide

CAT N°: 11188
Price:

From 122.00 103.70

Proline-glycine-proline (PGP) is a tripeptide molecule and an established biomarker for chronic obstructive pulmonary disease (COPD) and cystic fibrosis (CF).{20330} PGP functions as a neutrophil chemoattractant and is derived from the proteolytic cleavage of collagen in the extracellular matrix by a multistep cascade. First, the matrix metalloproteases MMP-8 or MMP-9 cleave collagen to peptides 30-100 amino acids in length. Prolyl endopeptidase further cleaves the collagen fragments to PGP. PGP and the related peptide N-acetylated PGP (Item No. 11189) act through chemokine receptors CXCR1 and CXCR2 on neutrophil cells.{20331} Patients with cystic fibrosis have been shown to have elevated levels of PGP peptides in sputum.{20330} PGP, but not N-acetylated PGP, has been demonstrated to be a substrate for the pro-inflammatory enzyme LTA4 hydrolase.{20329}

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